more easter tests

1 files changed, 4910 insertions, 4602 deletions

diff --git a/tests/rrule.rs b/tests/rrule.rs
index 8a12c31..d62d3b9 100644
--- a/tests/rrule.rs
+++ b/tests/rrule.rs
@@ -121,4606 +121,4914 @@ mod test {
         );
     }
 
-    //#[test]
-    //fn yearly_by_month() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![2],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 2, 9, 0, 0),
-    //ymd_hms(1998, 3, 2, 9, 0, 0),
-    //ymd_hms(1999, 1, 2, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_monthday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![1, 3],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 3, 9, 0, 0),
-    //ymd_hms(1997, 10, 1, 9, 0, 0),
-    //ymd_hms(1997, 10, 3, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_month_and_monthday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![5, 7],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 5, 9, 0, 0),
-    //ymd_hms(1998, 1, 7, 9, 0, 0),
-    //ymd_hms(1998, 3, 5, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 9, 4, 9, 0, 0),
-    //ymd_hms(1997, 9, 9, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_nweekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![vec![1, 1], vec![3, -1]],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 25, 9, 0, 0),
-    //ymd_hms(1998, 1, 6, 9, 0, 0),
-    //ymd_hms(1998, 12, 31, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_nweekday_large() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![vec![1, 13], vec![3, -13]],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 10, 2, 9, 0, 0),
-    //ymd_hms(1998, 3, 31, 9, 0, 0),
-    //ymd_hms(1998, 10, 8, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_month_and_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 1, 6, 9, 0, 0),
-    //ymd_hms(1998, 1, 8, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_month_and_nweekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![vec![1, 1], vec![3, -1]],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 6, 9, 0, 0),
-    //ymd_hms(1998, 1, 29, 9, 0, 0),
-    //ymd_hms(1998, 3, 3, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_month_and_nweekday_large() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![vec![1, 3], vec![3, -3]],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 15, 9, 0, 0),
-    //ymd_hms(1998, 1, 20, 9, 0, 0),
-    //ymd_hms(1998, 3, 12, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_monthday_and_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![1, 3],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 2, 3, 9, 0, 0),
-    //ymd_hms(1998, 3, 3, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_month_and_monthday_and_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![1, 3],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 3, 3, 9, 0, 0),
-    //ymd_hms(2001, 3, 1, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_yearday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(4),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![1, 100, 200, 365],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 31, 9, 0, 0),
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 4, 10, 9, 0, 0),
-    //ymd_hms(1998, 7, 19, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_yeardayneg() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(4),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![-365, -266, -166, -1],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 31, 9, 0, 0),
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 4, 10, 9, 0, 0),
-    //ymd_hms(1998, 7, 19, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_month_and_yearday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(4),
-    //bymonth: vec![4, 7],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![1, 100, 200, 365],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 4, 10, 9, 0, 0),
-    //ymd_hms(1998, 7, 19, 9, 0, 0),
-    //ymd_hms(1999, 4, 10, 9, 0, 0),
-    //ymd_hms(1999, 7, 19, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_weekno() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![20],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 5, 11, 9, 0, 0),
-    //ymd_hms(1998, 5, 12, 9, 0, 0),
-    //ymd_hms(1998, 5, 13, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_weekno_and_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![0],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![1],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 29, 9, 0, 0),
-    //ymd_hms(1999, 1, 4, 9, 0, 0),
-    //ymd_hms(2000, 1, 3, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_weekno_and_weekday_large() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![6],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![52],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 28, 9, 0, 0),
-    //ymd_hms(1998, 12, 27, 9, 0, 0),
-    //ymd_hms(2000, 1, 2, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_weekno_and_weekday_last() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![6],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![-1],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 28, 9, 0, 0),
-    //ymd_hms(1999, 1, 3, 9, 0, 0),
-    //ymd_hms(2000, 1, 2, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_weekno_and_weekday53_last() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![0],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![53],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 12, 28, 9, 0, 0),
-    //ymd_hms(2004, 12, 27, 9, 0, 0),
-    //ymd_hms(2009, 12, 28, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_hour() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![9],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![2],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 0, 0),
-    //ymd_hms(1998, 9, 2, 6, 0, 0),
-    //ymd_hms(1998, 9, 2, 18, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_minute() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![9],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![6, 18],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![2],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 6, 0),
-    //ymd_hms(1997, 9, 2, 9, 18, 0),
-    //ymd_hms(1998, 9, 2, 9, 6, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_second() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![9],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![6, 18],
-    //byyearday: vec![],
-    //bymonthday: vec![2],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 6),
-    //ymd_hms(1997, 9, 2, 9, 0, 18),
-    //ymd_hms(1998, 9, 2, 9, 0, 6),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_hour_and_minute() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![9],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![6, 18],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![2],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 6, 0),
-    //ymd_hms(1997, 9, 2, 18, 18, 0),
-    //ymd_hms(1998, 9, 2, 6, 6, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_hour_and_second() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![9],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![6, 18],
-    //byyearday: vec![],
-    //bymonthday: vec![2],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 0, 6),
-    //ymd_hms(1997, 9, 2, 18, 0, 18),
-    //ymd_hms(1998, 9, 2, 6, 0, 6),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_minute_and_second() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![9],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![6, 18],
-    //bysecond: vec![6, 18],
-    //byyearday: vec![],
-    //bymonthday: vec![2],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 6, 6),
-    //ymd_hms(1997, 9, 2, 9, 6, 18),
-    //ymd_hms(1997, 9, 2, 9, 18, 6),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_hour_and_minute_and_second() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![9],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![6, 18],
-    //bysecond: vec![6, 18],
-    //byyearday: vec![],
-    //bymonthday: vec![2],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 6, 6),
-    //ymd_hms(1997, 9, 2, 18, 6, 18),
-    //ymd_hms(1997, 9, 2, 18, 18, 6),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn yearly_by_setpos() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::YEARLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![3, -3],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![15],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 11, 15, 18, 0, 0),
-    //ymd_hms(1998, 2, 15, 6, 0, 0),
-    //ymd_hms(1998, 11, 15, 18, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![2],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 10, 2, 9, 0, 0),
-    //ymd_hms(1997, 11, 2, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_interval() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![2],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 2,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 11, 2, 9, 0, 0),
-    //ymd_hms(1998, 1, 2, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_interval_large() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![2],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 18,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1999, 3, 2, 9, 0, 0),
-    //ymd_hms(2000, 9, 2, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_month() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![2],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 2, 9, 0, 0),
-    //ymd_hms(1998, 3, 2, 9, 0, 0),
-    //ymd_hms(1999, 1, 2, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_monthday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![1, 3],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 3, 9, 0, 0),
-    //ymd_hms(1997, 10, 1, 9, 0, 0),
-    //ymd_hms(1997, 10, 3, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_month_and_monthday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![5, 7],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 5, 9, 0, 0),
-    //ymd_hms(1998, 1, 7, 9, 0, 0),
-    //ymd_hms(1998, 3, 5, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 9, 4, 9, 0, 0),
-    //ymd_hms(1997, 9, 9, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_nweekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![vec![1, 1], vec![3, -1]],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 9, 25, 9, 0, 0),
-    //ymd_hms(1997, 10, 7, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_nweekday_large() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![vec![1, 3], vec![3, -3]],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 11, 9, 0, 0),
-    //ymd_hms(1997, 9, 16, 9, 0, 0),
-    //ymd_hms(1997, 10, 16, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_month_and_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 1, 6, 9, 0, 0),
-    //ymd_hms(1998, 1, 8, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_month_and_nweekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![vec![1, 1], vec![3, -1]],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 6, 9, 0, 0),
-    //ymd_hms(1998, 1, 29, 9, 0, 0),
-    //ymd_hms(1998, 3, 3, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_month_and_nweekday_large() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![vec![1, 3], vec![3, -3]],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 15, 9, 0, 0),
-    //ymd_hms(1998, 1, 20, 9, 0, 0),
-    //ymd_hms(1998, 3, 12, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_monthday_and_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![1, 3],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 2, 3, 9, 0, 0),
-    //ymd_hms(1998, 3, 3, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_month_and_monthday_and_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![1, 3],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 3, 3, 9, 0, 0),
-    //ymd_hms(2001, 3, 1, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_yearday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(4),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![1, 100, 200, 365],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 31, 9, 0, 0),
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 4, 10, 9, 0, 0),
-    //ymd_hms(1998, 7, 19, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_yeardayneg() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(4),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![-365, -266, -166, -1],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 31, 9, 0, 0),
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 4, 10, 9, 0, 0),
-    //ymd_hms(1998, 7, 19, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_month_and_yearday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(4),
-    //bymonth: vec![4, 7],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![1, 100, 200, 365],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 4, 10, 9, 0, 0),
-    //ymd_hms(1998, 7, 19, 9, 0, 0),
-    //ymd_hms(1999, 4, 10, 9, 0, 0),
-    //ymd_hms(1999, 7, 19, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_weekno() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![20],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 5, 11, 9, 0, 0),
-    //ymd_hms(1998, 5, 12, 9, 0, 0),
-    //ymd_hms(1998, 5, 13, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //// That's a nice one. The first days of week number one
-    //// may be in the last year.
-    //#[test]
-    //fn monthly_by_weekno_and_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![0],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![1],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 29, 9, 0, 0),
-    //ymd_hms(1999, 1, 4, 9, 0, 0),
-    //ymd_hms(2000, 1, 3, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //// Another nice test. The last days of week number 52/53
-    //// may be in the next year.
-    //#[test]
-    //fn monthly_by_weekno_and_weekday_large() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![6],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![52],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 28, 9, 0, 0),
-    //ymd_hms(1998, 12, 27, 9, 0, 0),
-    //ymd_hms(2000, 1, 2, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_weekno_and_weekday_last() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![6],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![-1],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 28, 9, 0, 0),
-    //ymd_hms(1999, 1, 3, 9, 0, 0),
-    //ymd_hms(2000, 1, 2, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_weekno_and_weekday53() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![0],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![53],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 12, 28, 9, 0, 0),
-    //ymd_hms(2004, 12, 27, 9, 0, 0),
-    //ymd_hms(2009, 12, 28, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_hour() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![2],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 0, 0),
-    //ymd_hms(1997, 10, 2, 6, 0, 0),
-    //ymd_hms(1997, 10, 2, 18, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_minute() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![6, 18],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![2],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 6, 0),
-    //ymd_hms(1997, 9, 2, 9, 18, 0),
-    //ymd_hms(1997, 10, 2, 9, 6, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_second() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![6, 18],
-    //byyearday: vec![],
-    //bymonthday: vec![2],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 6),
-    //ymd_hms(1997, 9, 2, 9, 0, 18),
-    //ymd_hms(1997, 10, 2, 9, 0, 6),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_hour_and_minute() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![6, 18],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![2],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 6, 0),
-    //ymd_hms(1997, 9, 2, 18, 18, 0),
-    //ymd_hms(1997, 10, 2, 6, 6, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_hour_and_second() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![6, 18],
-    //byyearday: vec![],
-    //bymonthday: vec![2],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 0, 6),
-    //ymd_hms(1997, 9, 2, 18, 0, 18),
-    //ymd_hms(1997, 10, 2, 6, 0, 6),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_minute_and_second() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![6, 18],
-    //bysecond: vec![6, 18],
-    //byyearday: vec![],
-    //bymonthday: vec![2],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 6, 6),
-    //ymd_hms(1997, 9, 2, 9, 6, 18),
-    //ymd_hms(1997, 9, 2, 9, 18, 6),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_hour_and_minute_and_second() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![6, 18],
-    //bysecond: vec![6, 18],
-    //byyearday: vec![],
-    //bymonthday: vec![2],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 6, 6),
-    //ymd_hms(1997, 9, 2, 18, 6, 18),
-    //ymd_hms(1997, 9, 2, 18, 18, 6),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn monthly_by_setpos() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::MONTHLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![3, -3],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![13, 17],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 13, 18, 0, 0),
-    //ymd_hms(1997, 9, 17, 6, 0, 0),
-    //ymd_hms(1997, 10, 13, 18, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 9, 9, 9, 0, 0),
-    //ymd_hms(1997, 9, 16, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_interval() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 2,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 9, 16, 9, 0, 0),
-    //ymd_hms(1997, 9, 30, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_interval_large() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 20,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1998, 1, 20, 9, 0, 0),
-    //ymd_hms(1998, 6, 9, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_month() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(6),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 6, 9, 0, 0),
-    //ymd_hms(1998, 1, 13, 9, 0, 0),
-    //ymd_hms(1998, 1, 20, 9, 0, 0),
-    //ymd_hms(1998, 1, 27, 9, 0, 0),
-    //ymd_hms(1998, 3, 3, 9, 0, 0),
-    //ymd_hms(1998, 3, 10, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_monthday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![1, 3],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 3, 9, 0, 0),
-    //ymd_hms(1997, 10, 1, 9, 0, 0),
-    //ymd_hms(1997, 10, 3, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_month_and_monthday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![5, 7],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 5, 9, 0, 0),
-    //ymd_hms(1998, 1, 7, 9, 0, 0),
-    //ymd_hms(1998, 3, 5, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 9, 4, 9, 0, 0),
-    //ymd_hms(1997, 9, 9, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //// ! why isnt this using nweekday ???
-    //#[test]
-    //fn weekly_by_nweekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 9, 4, 9, 0, 0),
-    //ymd_hms(1997, 9, 9, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_month_and_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 1, 6, 9, 0, 0),
-    //ymd_hms(1998, 1, 8, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_monthday_and_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![1, 3],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 2, 3, 9, 0, 0),
-    //ymd_hms(1998, 3, 3, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_month_monthday_and_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![1, 3],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 3, 3, 9, 0, 0),
-    //ymd_hms(2001, 3, 1, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_yearday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(4),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![1, 100, 200, 365],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 31, 9, 0, 0),
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 4, 10, 9, 0, 0),
-    //ymd_hms(1998, 7, 19, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_yeardayneg() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(4),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![-365, -266, -166, -1],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 31, 9, 0, 0),
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 4, 10, 9, 0, 0),
-    //ymd_hms(1998, 7, 19, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_month_yearday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(4),
-    //bymonth: vec![1, 7],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![1, 100, 200, 365],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 7, 19, 9, 0, 0),
-    //ymd_hms(1999, 1, 1, 9, 0, 0),
-    //ymd_hms(1999, 7, 19, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_weekno() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![20],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 5, 11, 9, 0, 0),
-    //ymd_hms(1998, 5, 12, 9, 0, 0),
-    //ymd_hms(1998, 5, 13, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_weekno_and_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![0],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![1],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 29, 9, 0, 0),
-    //ymd_hms(1999, 1, 4, 9, 0, 0),
-    //ymd_hms(2000, 1, 3, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_weekno_and_weekday_large() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![6],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![52],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 28, 9, 0, 0),
-    //ymd_hms(1998, 12, 27, 9, 0, 0),
-    //ymd_hms(2000, 1, 2, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_weekno_and_weekday_last() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![6],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![-1],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 28, 9, 0, 0),
-    //ymd_hms(1999, 1, 3, 9, 0, 0),
-    //ymd_hms(2000, 1, 2, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_weekno_and_weekday53() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![0],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![53],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 12, 28, 9, 0, 0),
-    //ymd_hms(2004, 12, 27, 9, 0, 0),
-    //ymd_hms(2009, 12, 28, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_hour() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 0, 0),
-    //ymd_hms(1997, 9, 9, 6, 0, 0),
-    //ymd_hms(1997, 9, 9, 18, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_minute() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![6, 18],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 6, 0),
-    //ymd_hms(1997, 9, 2, 9, 18, 0),
-    //ymd_hms(1997, 9, 9, 9, 6, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_second() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![6, 18],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 6),
-    //ymd_hms(1997, 9, 2, 9, 0, 18),
-    //ymd_hms(1997, 9, 9, 9, 0, 6),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_hour_and_minute() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![6, 18],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 6, 0),
-    //ymd_hms(1997, 9, 2, 18, 18, 0),
-    //ymd_hms(1997, 9, 9, 6, 6, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_hour_and_second() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![6, 18],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 0, 6),
-    //ymd_hms(1997, 9, 2, 18, 0, 18),
-    //ymd_hms(1997, 9, 9, 6, 0, 6),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_minute_and_second() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![6, 18],
-    //bysecond: vec![6, 18],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 6, 6),
-    //ymd_hms(1997, 9, 2, 9, 6, 18),
-    //ymd_hms(1997, 9, 2, 9, 18, 6),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_hour_and_minute_and_second() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(5),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![6, 18],
-    //bysecond: vec![6, 18],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 6, 6),
-    //ymd_hms(1997, 9, 2, 18, 6, 18),
-    //ymd_hms(1997, 9, 2, 18, 18, 6),
-    //ymd_hms(1997, 9, 2, 18, 18, 18),
-    //ymd_hms(1997, 9, 9, 6, 6, 6),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn weekly_by_setpos() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![3, -3],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 0, 0),
-    //ymd_hms(1997, 9, 4, 6, 0, 0),
-    //ymd_hms(1997, 9, 9, 18, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 9, 3, 9, 0, 0),
-    //ymd_hms(1997, 9, 4, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_interval() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 2,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 9, 4, 9, 0, 0),
-    //ymd_hms(1997, 9, 6, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_interval_large() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 92,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 12, 3, 9, 0, 0),
-    //ymd_hms(1998, 3, 5, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_by_month() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 1, 2, 9, 0, 0),
-    //ymd_hms(1998, 1, 3, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_by_monthday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![1, 3],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 3, 9, 0, 0),
-    //ymd_hms(1997, 10, 1, 9, 0, 0),
-    //ymd_hms(1997, 10, 3, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_by_month_and_monthday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![5, 7],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 5, 9, 0, 0),
-    //ymd_hms(1998, 1, 7, 9, 0, 0),
-    //ymd_hms(1998, 3, 5, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_by_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 9, 4, 9, 0, 0),
-    //ymd_hms(1997, 9, 9, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_by_month_and_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 1, 6, 9, 0, 0),
-    //ymd_hms(1998, 1, 8, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_by_monthday_and_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![1, 3],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 2, 3, 9, 0, 0),
-    //ymd_hms(1998, 3, 3, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_by_month_and_monthday_and_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![1, 3],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 3, 3, 9, 0, 0),
-    //ymd_hms(2001, 3, 1, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_by_yearday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(4),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![1, 100, 200, 365],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 31, 9, 0, 0),
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 4, 10, 9, 0, 0),
-    //ymd_hms(1998, 7, 19, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_by_yeardayneg() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(4),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![-365, -266, -166, -1],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 31, 9, 0, 0),
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 4, 10, 9, 0, 0),
-    //ymd_hms(1998, 7, 19, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_by_month_and_yearday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(4),
-    //bymonth: vec![1, 7],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![1, 100, 200, 365],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 7, 19, 9, 0, 0),
-    //ymd_hms(1999, 1, 1, 9, 0, 0),
-    //ymd_hms(1999, 7, 19, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_by_weekno() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![20],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 5, 11, 9, 0, 0),
-    //ymd_hms(1998, 5, 12, 9, 0, 0),
-    //ymd_hms(1998, 5, 13, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //// That's a nice one. The first days of week number one
-    //// may be in the last year.
-    //#[test]
-    //fn daily_by_weekno_and_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![0],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![1],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 29, 9, 0, 0),
-    //ymd_hms(1999, 1, 4, 9, 0, 0),
-    //ymd_hms(2000, 1, 3, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //// Another nice test. The last days of week number 52/53
-    //// may be in the next year.
-    //#[test]
-    //fn daily_by_weekno_and_weekday_large() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![6],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![52],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 28, 9, 0, 0),
-    //ymd_hms(1998, 12, 27, 9, 0, 0),
-    //ymd_hms(2000, 1, 2, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_by_weekno_and_weekday_last() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![6],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![-1],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 28, 9, 0, 0),
-    //ymd_hms(1999, 1, 3, 9, 0, 0),
-    //ymd_hms(2000, 1, 2, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_by_weekno_and_weekday53() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![0],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![53],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 12, 28, 9, 0, 0),
-    //ymd_hms(2004, 12, 27, 9, 0, 0),
-    //ymd_hms(2009, 12, 28, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_by_hour() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 0, 0),
-    //ymd_hms(1997, 9, 3, 6, 0, 0),
-    //ymd_hms(1997, 9, 3, 18, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_by_minute() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![6, 18],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 6, 0),
-    //ymd_hms(1997, 9, 2, 9, 18, 0),
-    //ymd_hms(1997, 9, 3, 9, 6, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_by_second() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![6, 18],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 6),
-    //ymd_hms(1997, 9, 2, 9, 0, 18),
-    //ymd_hms(1997, 9, 3, 9, 0, 6),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_by_hour_and_minute() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![6, 18],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 6, 0),
-    //ymd_hms(1997, 9, 2, 18, 18, 0),
-    //ymd_hms(1997, 9, 3, 6, 6, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_by_hour_and_second() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![6, 18],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 0, 6),
-    //ymd_hms(1997, 9, 2, 18, 0, 18),
-    //ymd_hms(1997, 9, 3, 6, 0, 6),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_by_minute_and_second() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![6, 18],
-    //bysecond: vec![6, 18],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 6, 6),
-    //ymd_hms(1997, 9, 2, 9, 6, 18),
-    //ymd_hms(1997, 9, 2, 9, 18, 6),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_by_hour_and_minute_and_second() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![6, 18],
-    //bysecond: vec![6, 18],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 6, 6),
-    //ymd_hms(1997, 9, 2, 18, 6, 18),
-    //ymd_hms(1997, 9, 2, 18, 18, 6),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn daily_by_setpos() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![3, -3],
-    //byweekno: vec![],
-    //byminute: vec![15, 45],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 15, 0),
-    //ymd_hms(1997, 9, 3, 6, 45, 0),
-    //ymd_hms(1997, 9, 3, 18, 15, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 9, 2, 10, 0, 0),
-    //ymd_hms(1997, 9, 2, 11, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_interval() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 2,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 9, 2, 11, 0, 0),
-    //ymd_hms(1997, 9, 2, 13, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_interval_large() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 769,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 10, 4, 10, 0, 0),
-    //ymd_hms(1997, 11, 5, 11, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_month() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 1, 0, 0, 0),
-    //ymd_hms(1998, 1, 1, 1, 0, 0),
-    //ymd_hms(1998, 1, 1, 2, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_monthday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![1, 3],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 3, 0, 0, 0),
-    //ymd_hms(1997, 9, 3, 1, 0, 0),
-    //ymd_hms(1997, 9, 3, 2, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_month_and_monthday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![5, 7],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 5, 0, 0, 0),
-    //ymd_hms(1998, 1, 5, 1, 0, 0),
-    //ymd_hms(1998, 1, 5, 2, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(5),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 5,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 9, 2, 14, 0, 0),
-    //ymd_hms(1997, 9, 2, 19, 0, 0),
-    //ymd_hms(1997, 9, 4, 1, 0, 0),
-    //ymd_hms(1997, 9, 4, 6, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_month_and_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 1, 0, 0, 0),
-    //ymd_hms(1998, 1, 1, 1, 0, 0),
-    //ymd_hms(1998, 1, 1, 2, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_monthday_and_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![1, 3],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 1, 0, 0, 0),
-    //ymd_hms(1998, 1, 1, 1, 0, 0),
-    //ymd_hms(1998, 1, 1, 2, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_month_and_monthday_and_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(3),
-    //bymonth: vec![1, 3],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![1, 3],
-    //byhour: vec![],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![1, 3],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 1, 1, 0, 0, 0),
-    //ymd_hms(1998, 1, 1, 1, 0, 0),
-    //ymd_hms(1998, 1, 1, 2, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_yearday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(8),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![1, 100, 200, 365],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 12,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 31, 9, 0, 0),
-    //ymd_hms(1997, 12, 31, 21, 0, 0),
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 1, 1, 21, 0, 0),
-    //ymd_hms(1998, 4, 10, 9, 0, 0),
-    //ymd_hms(1998, 4, 10, 21, 0, 0),
-    //ymd_hms(1998, 7, 19, 9, 0, 0),
-    //ymd_hms(1998, 7, 19, 21, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_yeardayneg() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(8),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![-365, -266, -166, -1],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 12,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 31, 9, 0, 0),
-    //ymd_hms(1997, 12, 31, 21, 0, 0),
-    //ymd_hms(1998, 1, 1, 9, 0, 0),
-    //ymd_hms(1998, 1, 1, 21, 0, 0),
-    //ymd_hms(1998, 4, 10, 9, 0, 0),
-    //ymd_hms(1998, 4, 10, 21, 0, 0),
-    //ymd_hms(1998, 7, 19, 9, 0, 0),
-    //ymd_hms(1998, 7, 19, 21, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_month_and_yearday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(4),
-    //bymonth: vec![4, 7],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![1, 100, 200, 365],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 4, 10, 0, 0, 0),
-    //ymd_hms(1998, 4, 10, 1, 0, 0),
-    //ymd_hms(1998, 4, 10, 2, 0, 0),
-    //ymd_hms(1998, 4, 10, 3, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_weekno() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![],
-    //bysetpos: vec![],
-    //byweekno: vec![20],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 5, 11, 0, 0, 0),
-    //ymd_hms(1998, 5, 11, 1, 0, 0),
-    //ymd_hms(1998, 5, 11, 2, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_weekno_and_weekday() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![0],
-    //byhour: vec![],
-    //bysetpos: vec![],
-    //byweekno: vec![1],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 29, 0, 0, 0),
-    //ymd_hms(1997, 12, 29, 1, 0, 0),
-    //ymd_hms(1997, 12, 29, 2, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_weekno_and_weekday_large() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![6],
-    //byhour: vec![],
-    //bysetpos: vec![],
-    //byweekno: vec![52],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 28, 0, 0, 0),
-    //ymd_hms(1997, 12, 28, 1, 0, 0),
-    //ymd_hms(1997, 12, 28, 2, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_weekno_and_weekday_last() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![6],
-    //byhour: vec![],
-    //bysetpos: vec![],
-    //byweekno: vec![-1],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 12, 28, 0, 0, 0),
-    //ymd_hms(1997, 12, 28, 1, 0, 0),
-    //ymd_hms(1997, 12, 28, 2, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_weekno_and_weekday53() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![0],
-    //byhour: vec![],
-    //bysetpos: vec![],
-    //byweekno: vec![53],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1998, 12, 28, 0, 0, 0),
-    //ymd_hms(1998, 12, 28, 1, 0, 0),
-    //ymd_hms(1998, 12, 28, 2, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_hour() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 0, 0),
-    //ymd_hms(1997, 9, 3, 6, 0, 0),
-    //ymd_hms(1997, 9, 3, 18, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_minute() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![6, 18],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 6, 0),
-    //ymd_hms(1997, 9, 2, 9, 18, 0),
-    //ymd_hms(1997, 9, 2, 10, 6, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_second() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![6, 18],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 6),
-    //ymd_hms(1997, 9, 2, 9, 0, 18),
-    //ymd_hms(1997, 9, 2, 10, 0, 6),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_hour_and_minute() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![6, 18],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 6, 0),
-    //ymd_hms(1997, 9, 2, 18, 18, 0),
-    //ymd_hms(1997, 9, 3, 6, 6, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_hour_and_second() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![6, 18],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 0, 6),
-    //ymd_hms(1997, 9, 2, 18, 0, 18),
-    //ymd_hms(1997, 9, 3, 6, 0, 6),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_minute_and_second() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![6, 18],
-    //bysecond: vec![6, 18],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 6, 6),
-    //ymd_hms(1997, 9, 2, 9, 6, 18),
-    //ymd_hms(1997, 9, 2, 9, 18, 6),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_hour_and_minute_and_second() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(5),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![6, 18],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![6, 18],
-    //bysecond: vec![6, 18],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 18, 6, 6),
-    //ymd_hms(1997, 9, 2, 18, 6, 18),
-    //ymd_hms(1997, 9, 2, 18, 18, 6),
-    //ymd_hms(1997, 9, 2, 18, 18, 18),
-    //ymd_hms(1997, 9, 3, 6, 6, 6),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn hourly_by_setpos() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::HOURLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //byweekday: vec![],
-    //byhour: vec![],
-    //bysetpos: vec![3, -3],
-    //byweekno: vec![],
-    //byminute: vec![15, 45],
-    //bysecond: vec![15, 45],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //until: None,
-    //wkst: 0,
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 15, 45),
-    //ymd_hms(1997, 9, 2, 9, 45, 15),
-    //ymd_hms(1997, 9, 2, 10, 15, 45),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn until_not_matching() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //until: Some(ymd_hms(1997, 9, 5, 8, 0, 0)),
-    //wkst: 0,
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 9, 3, 9, 0, 0),
-    //ymd_hms(1997, 9, 4, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn until_matching() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(4),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //until: Some(ymd_hms(1997, 9, 4, 9, 0, 0)),
-    //wkst: 0,
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 9, 3, 9, 0, 0),
-    //ymd_hms(1997, 9, 4, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn until_single() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(1),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //until: Some(ymd_hms(1997, 9, 2, 9, 0, 0)),
-    //wkst: 0,
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(&mut options, &vec![ymd_hms(1997, 9, 2, 9, 0, 0)]);
-    //}
-
-    //#[test]
-    //fn until_empty() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(1),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //until: Some(ymd_hms(1997, 9, 1, 9, 0, 0)),
-    //wkst: 0,
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(&mut options, &vec![]);
-    //}
-
-    //#[test]
-    //fn until_with_date() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::DAILY,
-    //count: Some(4),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //until: Some(ymd_hms(1997, 9, 5, 0, 0, 0)),
-    //wkst: 0,
-    //byweekday: vec![],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //tzid: None,
-    //interval: 1,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 9, 3, 9, 0, 0),
-    //ymd_hms(1997, 9, 4, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn wkst_interval_mo() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //until: None,
-    //wkst: 0,
-    //byweekday: vec![1, 6],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //tzid: None,
-    //interval: 2,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 9, 7, 9, 0, 0),
-    //ymd_hms(1997, 9, 16, 9, 0, 0),
-    //],
-    //);
-    //}
-
-    //#[test]
-    //fn wkst_interval_su() {
-    //let mut options = ParsedOptions {
-    //freq: Frequenzy::WEEKLY,
-    //count: Some(3),
-    //bymonth: vec![],
-    //dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
-    //until: None,
-    //wkst: 6,
-    //byweekday: vec![1, 6],
-    //byhour: vec![9],
-    //bysetpos: vec![],
-    //byweekno: vec![],
-    //byminute: vec![0],
-    //bysecond: vec![0],
-    //byyearday: vec![],
-    //bymonthday: vec![],
-    //bynweekday: vec![],
-    //bynmonthday: vec![],
-    //tzid: None,
-    //interval: 2,
-    //};
-    //test_recurring(
-    //&mut options,
-    //&vec![
-    //ymd_hms(1997, 9, 2, 9, 0, 0),
-    //ymd_hms(1997, 9, 14, 9, 0, 0),
-    //ymd_hms(1997, 9, 16, 9, 0, 0),
-    //],
-    //);
-    //}
+    #[test]
+    fn yearly_by_easterpos() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: Some(1),
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 4, 13, 9, 0, 0),
+                ymd_hms(1999, 4, 5, 9, 0, 0),
+                ymd_hms(2000, 4, 24, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_easterpos_neg() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: Some(-2),
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 4, 10, 9, 0, 0),
+                ymd_hms(1999, 4, 2, 9, 0, 0),
+                ymd_hms(2000, 4, 21, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_month() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![2],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 2, 9, 0, 0),
+                ymd_hms(1998, 3, 2, 9, 0, 0),
+                ymd_hms(1999, 1, 2, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_monthday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![1, 3],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 3, 9, 0, 0),
+                ymd_hms(1997, 10, 1, 9, 0, 0),
+                ymd_hms(1997, 10, 3, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_month_and_monthday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![5, 7],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 5, 9, 0, 0),
+                ymd_hms(1998, 1, 7, 9, 0, 0),
+                ymd_hms(1998, 3, 5, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 9, 4, 9, 0, 0),
+                ymd_hms(1997, 9, 9, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_nweekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![vec![1, 1], vec![3, -1]],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 25, 9, 0, 0),
+                ymd_hms(1998, 1, 6, 9, 0, 0),
+                ymd_hms(1998, 12, 31, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_nweekday_large() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![vec![1, 13], vec![3, -13]],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 10, 2, 9, 0, 0),
+                ymd_hms(1998, 3, 31, 9, 0, 0),
+                ymd_hms(1998, 10, 8, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_month_and_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 1, 6, 9, 0, 0),
+                ymd_hms(1998, 1, 8, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_month_and_nweekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![vec![1, 1], vec![3, -1]],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 6, 9, 0, 0),
+                ymd_hms(1998, 1, 29, 9, 0, 0),
+                ymd_hms(1998, 3, 3, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_month_and_nweekday_large() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![vec![1, 3], vec![3, -3]],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 15, 9, 0, 0),
+                ymd_hms(1998, 1, 20, 9, 0, 0),
+                ymd_hms(1998, 3, 12, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_monthday_and_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![1, 3],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 2, 3, 9, 0, 0),
+                ymd_hms(1998, 3, 3, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_month_and_monthday_and_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![1, 3],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 3, 3, 9, 0, 0),
+                ymd_hms(2001, 3, 1, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_yearday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(4),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![1, 100, 200, 365],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 31, 9, 0, 0),
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 4, 10, 9, 0, 0),
+                ymd_hms(1998, 7, 19, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_yeardayneg() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(4),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![-365, -266, -166, -1],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 31, 9, 0, 0),
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 4, 10, 9, 0, 0),
+                ymd_hms(1998, 7, 19, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_month_and_yearday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(4),
+            bymonth: vec![4, 7],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![1, 100, 200, 365],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 4, 10, 9, 0, 0),
+                ymd_hms(1998, 7, 19, 9, 0, 0),
+                ymd_hms(1999, 4, 10, 9, 0, 0),
+                ymd_hms(1999, 7, 19, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_weekno() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![20],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 5, 11, 9, 0, 0),
+                ymd_hms(1998, 5, 12, 9, 0, 0),
+                ymd_hms(1998, 5, 13, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_weekno_and_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![0],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![1],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 29, 9, 0, 0),
+                ymd_hms(1999, 1, 4, 9, 0, 0),
+                ymd_hms(2000, 1, 3, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_weekno_and_weekday_large() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![6],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![52],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 28, 9, 0, 0),
+                ymd_hms(1998, 12, 27, 9, 0, 0),
+                ymd_hms(2000, 1, 2, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_weekno_and_weekday_last() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![6],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![-1],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 28, 9, 0, 0),
+                ymd_hms(1999, 1, 3, 9, 0, 0),
+                ymd_hms(2000, 1, 2, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_weekno_and_weekday53_last() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![0],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![53],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 12, 28, 9, 0, 0),
+                ymd_hms(2004, 12, 27, 9, 0, 0),
+                ymd_hms(2009, 12, 28, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_hour() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![9],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![6, 18],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![2],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 0, 0),
+                ymd_hms(1998, 9, 2, 6, 0, 0),
+                ymd_hms(1998, 9, 2, 18, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_minute() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![9],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![6, 18],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![2],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 6, 0),
+                ymd_hms(1997, 9, 2, 9, 18, 0),
+                ymd_hms(1998, 9, 2, 9, 6, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_second() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![9],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![6, 18],
+            byyearday: vec![],
+            bymonthday: vec![2],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 6),
+                ymd_hms(1997, 9, 2, 9, 0, 18),
+                ymd_hms(1998, 9, 2, 9, 0, 6),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_hour_and_minute() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![9],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![6, 18],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![6, 18],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![2],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 6, 0),
+                ymd_hms(1997, 9, 2, 18, 18, 0),
+                ymd_hms(1998, 9, 2, 6, 6, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_hour_and_second() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![9],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![6, 18],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![6, 18],
+            byyearday: vec![],
+            bymonthday: vec![2],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 0, 6),
+                ymd_hms(1997, 9, 2, 18, 0, 18),
+                ymd_hms(1998, 9, 2, 6, 0, 6),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_minute_and_second() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![9],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![6, 18],
+            bysecond: vec![6, 18],
+            byyearday: vec![],
+            bymonthday: vec![2],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 6, 6),
+                ymd_hms(1997, 9, 2, 9, 6, 18),
+                ymd_hms(1997, 9, 2, 9, 18, 6),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_hour_and_minute_and_second() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![9],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![6, 18],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![6, 18],
+            bysecond: vec![6, 18],
+            byyearday: vec![],
+            bymonthday: vec![2],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 6, 6),
+                ymd_hms(1997, 9, 2, 18, 6, 18),
+                ymd_hms(1997, 9, 2, 18, 18, 6),
+            ],
+        );
+    }
+
+    #[test]
+    fn yearly_by_setpos() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::YEARLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![6, 18],
+            bysetpos: vec![3, -3],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![15],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 11, 15, 18, 0, 0),
+                ymd_hms(1998, 2, 15, 6, 0, 0),
+                ymd_hms(1998, 11, 15, 18, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![2],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 10, 2, 9, 0, 0),
+                ymd_hms(1997, 11, 2, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_interval() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![2],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 2,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 11, 2, 9, 0, 0),
+                ymd_hms(1998, 1, 2, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_interval_large() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![2],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 18,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1999, 3, 2, 9, 0, 0),
+                ymd_hms(2000, 9, 2, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_easter() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: Some(0),
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 4, 12, 9, 0, 0),
+                ymd_hms(1999, 4, 4, 9, 0, 0),
+                ymd_hms(2000, 4, 23, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_easterpos() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: Some(1),
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 4, 13, 9, 0, 0),
+                ymd_hms(1999, 4, 5, 9, 0, 0),
+                ymd_hms(2000, 4, 24, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_easterpos_neg() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: Some(-2),
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 4, 10, 9, 0, 0),
+                ymd_hms(1999, 4, 2, 9, 0, 0),
+                ymd_hms(2000, 4, 21, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_month() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![2],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 2, 9, 0, 0),
+                ymd_hms(1998, 3, 2, 9, 0, 0),
+                ymd_hms(1999, 1, 2, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_monthday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![1, 3],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 3, 9, 0, 0),
+                ymd_hms(1997, 10, 1, 9, 0, 0),
+                ymd_hms(1997, 10, 3, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_month_and_monthday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![5, 7],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 5, 9, 0, 0),
+                ymd_hms(1998, 1, 7, 9, 0, 0),
+                ymd_hms(1998, 3, 5, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 9, 4, 9, 0, 0),
+                ymd_hms(1997, 9, 9, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_nweekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![vec![1, 1], vec![3, -1]],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 9, 25, 9, 0, 0),
+                ymd_hms(1997, 10, 7, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_nweekday_large() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![vec![1, 3], vec![3, -3]],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 11, 9, 0, 0),
+                ymd_hms(1997, 9, 16, 9, 0, 0),
+                ymd_hms(1997, 10, 16, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_month_and_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 1, 6, 9, 0, 0),
+                ymd_hms(1998, 1, 8, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_month_and_nweekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![vec![1, 1], vec![3, -1]],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 6, 9, 0, 0),
+                ymd_hms(1998, 1, 29, 9, 0, 0),
+                ymd_hms(1998, 3, 3, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_month_and_nweekday_large() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![vec![1, 3], vec![3, -3]],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 15, 9, 0, 0),
+                ymd_hms(1998, 1, 20, 9, 0, 0),
+                ymd_hms(1998, 3, 12, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_monthday_and_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![1, 3],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 2, 3, 9, 0, 0),
+                ymd_hms(1998, 3, 3, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_month_and_monthday_and_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![1, 3],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 3, 3, 9, 0, 0),
+                ymd_hms(2001, 3, 1, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_yearday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(4),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![1, 100, 200, 365],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 31, 9, 0, 0),
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 4, 10, 9, 0, 0),
+                ymd_hms(1998, 7, 19, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_yeardayneg() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(4),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![-365, -266, -166, -1],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 31, 9, 0, 0),
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 4, 10, 9, 0, 0),
+                ymd_hms(1998, 7, 19, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_month_and_yearday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(4),
+            bymonth: vec![4, 7],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![1, 100, 200, 365],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 4, 10, 9, 0, 0),
+                ymd_hms(1998, 7, 19, 9, 0, 0),
+                ymd_hms(1999, 4, 10, 9, 0, 0),
+                ymd_hms(1999, 7, 19, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_weekno() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![20],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 5, 11, 9, 0, 0),
+                ymd_hms(1998, 5, 12, 9, 0, 0),
+                ymd_hms(1998, 5, 13, 9, 0, 0),
+            ],
+        );
+    }
+
+    // That's a nice one. The first days of week number one
+    // may be in the last year.
+    #[test]
+    fn monthly_by_weekno_and_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![0],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![1],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 29, 9, 0, 0),
+                ymd_hms(1999, 1, 4, 9, 0, 0),
+                ymd_hms(2000, 1, 3, 9, 0, 0),
+            ],
+        );
+    }
+
+    // Another nice test. The last days of week number 52/53
+    // may be in the next year.
+    #[test]
+    fn monthly_by_weekno_and_weekday_large() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![6],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![52],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 28, 9, 0, 0),
+                ymd_hms(1998, 12, 27, 9, 0, 0),
+                ymd_hms(2000, 1, 2, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_weekno_and_weekday_last() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![6],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![-1],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 28, 9, 0, 0),
+                ymd_hms(1999, 1, 3, 9, 0, 0),
+                ymd_hms(2000, 1, 2, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_weekno_and_weekday53() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![0],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![53],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 12, 28, 9, 0, 0),
+                ymd_hms(2004, 12, 27, 9, 0, 0),
+                ymd_hms(2009, 12, 28, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_hour() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![6, 18],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![2],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 0, 0),
+                ymd_hms(1997, 10, 2, 6, 0, 0),
+                ymd_hms(1997, 10, 2, 18, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_minute() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![6, 18],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![2],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 6, 0),
+                ymd_hms(1997, 9, 2, 9, 18, 0),
+                ymd_hms(1997, 10, 2, 9, 6, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_second() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![6, 18],
+            byyearday: vec![],
+            bymonthday: vec![2],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 6),
+                ymd_hms(1997, 9, 2, 9, 0, 18),
+                ymd_hms(1997, 10, 2, 9, 0, 6),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_hour_and_minute() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![6, 18],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![6, 18],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![2],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 6, 0),
+                ymd_hms(1997, 9, 2, 18, 18, 0),
+                ymd_hms(1997, 10, 2, 6, 6, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_hour_and_second() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![6, 18],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![6, 18],
+            byyearday: vec![],
+            bymonthday: vec![2],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 0, 6),
+                ymd_hms(1997, 9, 2, 18, 0, 18),
+                ymd_hms(1997, 10, 2, 6, 0, 6),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_minute_and_second() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![6, 18],
+            bysecond: vec![6, 18],
+            byyearday: vec![],
+            bymonthday: vec![2],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 6, 6),
+                ymd_hms(1997, 9, 2, 9, 6, 18),
+                ymd_hms(1997, 9, 2, 9, 18, 6),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_hour_and_minute_and_second() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![6, 18],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![6, 18],
+            bysecond: vec![6, 18],
+            byyearday: vec![],
+            bymonthday: vec![2],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 6, 6),
+                ymd_hms(1997, 9, 2, 18, 6, 18),
+                ymd_hms(1997, 9, 2, 18, 18, 6),
+            ],
+        );
+    }
+
+    #[test]
+    fn monthly_by_setpos() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::MONTHLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![6, 18],
+            bysetpos: vec![3, -3],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![13, 17],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 13, 18, 0, 0),
+                ymd_hms(1997, 9, 17, 6, 0, 0),
+                ymd_hms(1997, 10, 13, 18, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 9, 9, 9, 0, 0),
+                ymd_hms(1997, 9, 16, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_interval() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 2,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 9, 16, 9, 0, 0),
+                ymd_hms(1997, 9, 30, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_interval_large() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 20,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1998, 1, 20, 9, 0, 0),
+                ymd_hms(1998, 6, 9, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_month() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(6),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 6, 9, 0, 0),
+                ymd_hms(1998, 1, 13, 9, 0, 0),
+                ymd_hms(1998, 1, 20, 9, 0, 0),
+                ymd_hms(1998, 1, 27, 9, 0, 0),
+                ymd_hms(1998, 3, 3, 9, 0, 0),
+                ymd_hms(1998, 3, 10, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_monthday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![1, 3],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 3, 9, 0, 0),
+                ymd_hms(1997, 10, 1, 9, 0, 0),
+                ymd_hms(1997, 10, 3, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_month_and_monthday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![5, 7],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 5, 9, 0, 0),
+                ymd_hms(1998, 1, 7, 9, 0, 0),
+                ymd_hms(1998, 3, 5, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 9, 4, 9, 0, 0),
+                ymd_hms(1997, 9, 9, 9, 0, 0),
+            ],
+        );
+    }
+
+    // ! why isnt this using nweekday ???
+    #[test]
+    fn weekly_by_nweekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 9, 4, 9, 0, 0),
+                ymd_hms(1997, 9, 9, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_month_and_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 1, 6, 9, 0, 0),
+                ymd_hms(1998, 1, 8, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_monthday_and_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![1, 3],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 2, 3, 9, 0, 0),
+                ymd_hms(1998, 3, 3, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_month_monthday_and_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![1, 3],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 3, 3, 9, 0, 0),
+                ymd_hms(2001, 3, 1, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_yearday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(4),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![1, 100, 200, 365],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 31, 9, 0, 0),
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 4, 10, 9, 0, 0),
+                ymd_hms(1998, 7, 19, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_yeardayneg() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(4),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![-365, -266, -166, -1],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 31, 9, 0, 0),
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 4, 10, 9, 0, 0),
+                ymd_hms(1998, 7, 19, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_month_yearday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(4),
+            bymonth: vec![1, 7],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![1, 100, 200, 365],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 7, 19, 9, 0, 0),
+                ymd_hms(1999, 1, 1, 9, 0, 0),
+                ymd_hms(1999, 7, 19, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_weekno() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![20],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 5, 11, 9, 0, 0),
+                ymd_hms(1998, 5, 12, 9, 0, 0),
+                ymd_hms(1998, 5, 13, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_weekno_and_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![0],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![1],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 29, 9, 0, 0),
+                ymd_hms(1999, 1, 4, 9, 0, 0),
+                ymd_hms(2000, 1, 3, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_weekno_and_weekday_large() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![6],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![52],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 28, 9, 0, 0),
+                ymd_hms(1998, 12, 27, 9, 0, 0),
+                ymd_hms(2000, 1, 2, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_weekno_and_weekday_last() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![6],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![-1],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 28, 9, 0, 0),
+                ymd_hms(1999, 1, 3, 9, 0, 0),
+                ymd_hms(2000, 1, 2, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_weekno_and_weekday53() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![0],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![53],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 12, 28, 9, 0, 0),
+                ymd_hms(2004, 12, 27, 9, 0, 0),
+                ymd_hms(2009, 12, 28, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_hour() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1],
+            byhour: vec![6, 18],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 0, 0),
+                ymd_hms(1997, 9, 9, 6, 0, 0),
+                ymd_hms(1997, 9, 9, 18, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_minute() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![6, 18],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 6, 0),
+                ymd_hms(1997, 9, 2, 9, 18, 0),
+                ymd_hms(1997, 9, 9, 9, 6, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_second() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![6, 18],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 6),
+                ymd_hms(1997, 9, 2, 9, 0, 18),
+                ymd_hms(1997, 9, 9, 9, 0, 6),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_hour_and_minute() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1],
+            byhour: vec![6, 18],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![6, 18],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 6, 0),
+                ymd_hms(1997, 9, 2, 18, 18, 0),
+                ymd_hms(1997, 9, 9, 6, 6, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_hour_and_second() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1],
+            byhour: vec![6, 18],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![6, 18],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 0, 6),
+                ymd_hms(1997, 9, 2, 18, 0, 18),
+                ymd_hms(1997, 9, 9, 6, 0, 6),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_minute_and_second() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![6, 18],
+            bysecond: vec![6, 18],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 6, 6),
+                ymd_hms(1997, 9, 2, 9, 6, 18),
+                ymd_hms(1997, 9, 2, 9, 18, 6),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_hour_and_minute_and_second() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(5),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1],
+            byhour: vec![6, 18],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![6, 18],
+            bysecond: vec![6, 18],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 6, 6),
+                ymd_hms(1997, 9, 2, 18, 6, 18),
+                ymd_hms(1997, 9, 2, 18, 18, 6),
+                ymd_hms(1997, 9, 2, 18, 18, 18),
+                ymd_hms(1997, 9, 9, 6, 6, 6),
+            ],
+        );
+    }
+
+    #[test]
+    fn weekly_by_setpos() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![6, 18],
+            bysetpos: vec![3, -3],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 0, 0),
+                ymd_hms(1997, 9, 4, 6, 0, 0),
+                ymd_hms(1997, 9, 9, 18, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 9, 3, 9, 0, 0),
+                ymd_hms(1997, 9, 4, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_interval() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 2,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 9, 4, 9, 0, 0),
+                ymd_hms(1997, 9, 6, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_interval_large() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 92,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 12, 3, 9, 0, 0),
+                ymd_hms(1998, 3, 5, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_by_month() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 1, 2, 9, 0, 0),
+                ymd_hms(1998, 1, 3, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_by_monthday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![1, 3],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 3, 9, 0, 0),
+                ymd_hms(1997, 10, 1, 9, 0, 0),
+                ymd_hms(1997, 10, 3, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_by_month_and_monthday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![5, 7],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 5, 9, 0, 0),
+                ymd_hms(1998, 1, 7, 9, 0, 0),
+                ymd_hms(1998, 3, 5, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_by_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 9, 4, 9, 0, 0),
+                ymd_hms(1997, 9, 9, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_by_month_and_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 1, 6, 9, 0, 0),
+                ymd_hms(1998, 1, 8, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_by_monthday_and_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![1, 3],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 2, 3, 9, 0, 0),
+                ymd_hms(1998, 3, 3, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_by_month_and_monthday_and_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![1, 3],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 3, 3, 9, 0, 0),
+                ymd_hms(2001, 3, 1, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_by_yearday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(4),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![1, 100, 200, 365],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 31, 9, 0, 0),
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 4, 10, 9, 0, 0),
+                ymd_hms(1998, 7, 19, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_by_yeardayneg() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(4),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![-365, -266, -166, -1],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 31, 9, 0, 0),
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 4, 10, 9, 0, 0),
+                ymd_hms(1998, 7, 19, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_by_month_and_yearday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(4),
+            bymonth: vec![1, 7],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![1, 100, 200, 365],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 7, 19, 9, 0, 0),
+                ymd_hms(1999, 1, 1, 9, 0, 0),
+                ymd_hms(1999, 7, 19, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_by_weekno() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![20],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 5, 11, 9, 0, 0),
+                ymd_hms(1998, 5, 12, 9, 0, 0),
+                ymd_hms(1998, 5, 13, 9, 0, 0),
+            ],
+        );
+    }
+
+    // That's a nice one. The first days of week number one
+    // may be in the last year.
+    #[test]
+    fn daily_by_weekno_and_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![0],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![1],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 29, 9, 0, 0),
+                ymd_hms(1999, 1, 4, 9, 0, 0),
+                ymd_hms(2000, 1, 3, 9, 0, 0),
+            ],
+        );
+    }
+
+    // Another nice test. The last days of week number 52/53
+    // may be in the next year.
+    #[test]
+    fn daily_by_weekno_and_weekday_large() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![6],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![52],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 28, 9, 0, 0),
+                ymd_hms(1998, 12, 27, 9, 0, 0),
+                ymd_hms(2000, 1, 2, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_by_weekno_and_weekday_last() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![6],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![-1],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 28, 9, 0, 0),
+                ymd_hms(1999, 1, 3, 9, 0, 0),
+                ymd_hms(2000, 1, 2, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_by_weekno_and_weekday53() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![0],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![53],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 12, 28, 9, 0, 0),
+                ymd_hms(2004, 12, 27, 9, 0, 0),
+                ymd_hms(2009, 12, 28, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_by_hour() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![6, 18],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 0, 0),
+                ymd_hms(1997, 9, 3, 6, 0, 0),
+                ymd_hms(1997, 9, 3, 18, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_by_minute() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![6, 18],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 6, 0),
+                ymd_hms(1997, 9, 2, 9, 18, 0),
+                ymd_hms(1997, 9, 3, 9, 6, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_by_second() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![6, 18],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 6),
+                ymd_hms(1997, 9, 2, 9, 0, 18),
+                ymd_hms(1997, 9, 3, 9, 0, 6),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_by_hour_and_minute() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![6, 18],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![6, 18],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 6, 0),
+                ymd_hms(1997, 9, 2, 18, 18, 0),
+                ymd_hms(1997, 9, 3, 6, 6, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_by_hour_and_second() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![6, 18],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![6, 18],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 0, 6),
+                ymd_hms(1997, 9, 2, 18, 0, 18),
+                ymd_hms(1997, 9, 3, 6, 0, 6),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_by_minute_and_second() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![6, 18],
+            bysecond: vec![6, 18],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 6, 6),
+                ymd_hms(1997, 9, 2, 9, 6, 18),
+                ymd_hms(1997, 9, 2, 9, 18, 6),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_by_hour_and_minute_and_second() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![6, 18],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![6, 18],
+            bysecond: vec![6, 18],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 6, 6),
+                ymd_hms(1997, 9, 2, 18, 6, 18),
+                ymd_hms(1997, 9, 2, 18, 18, 6),
+            ],
+        );
+    }
+
+    #[test]
+    fn daily_by_setpos() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![6, 18],
+            bysetpos: vec![3, -3],
+            byweekno: vec![],
+            byminute: vec![15, 45],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 15, 0),
+                ymd_hms(1997, 9, 3, 6, 45, 0),
+                ymd_hms(1997, 9, 3, 18, 15, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 9, 2, 10, 0, 0),
+                ymd_hms(1997, 9, 2, 11, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_interval() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 2,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 9, 2, 11, 0, 0),
+                ymd_hms(1997, 9, 2, 13, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_interval_large() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 769,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 10, 4, 10, 0, 0),
+                ymd_hms(1997, 11, 5, 11, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_month() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 1, 0, 0, 0),
+                ymd_hms(1998, 1, 1, 1, 0, 0),
+                ymd_hms(1998, 1, 1, 2, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_monthday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![1, 3],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 3, 0, 0, 0),
+                ymd_hms(1997, 9, 3, 1, 0, 0),
+                ymd_hms(1997, 9, 3, 2, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_month_and_monthday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![5, 7],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 5, 0, 0, 0),
+                ymd_hms(1998, 1, 5, 1, 0, 0),
+                ymd_hms(1998, 1, 5, 2, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(5),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 5,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 9, 2, 14, 0, 0),
+                ymd_hms(1997, 9, 2, 19, 0, 0),
+                ymd_hms(1997, 9, 4, 1, 0, 0),
+                ymd_hms(1997, 9, 4, 6, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_month_and_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 1, 0, 0, 0),
+                ymd_hms(1998, 1, 1, 1, 0, 0),
+                ymd_hms(1998, 1, 1, 2, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_monthday_and_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![1, 3],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 1, 0, 0, 0),
+                ymd_hms(1998, 1, 1, 1, 0, 0),
+                ymd_hms(1998, 1, 1, 2, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_month_and_monthday_and_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(3),
+            bymonth: vec![1, 3],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![1, 3],
+            byhour: vec![],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![1, 3],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 1, 1, 0, 0, 0),
+                ymd_hms(1998, 1, 1, 1, 0, 0),
+                ymd_hms(1998, 1, 1, 2, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_yearday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(8),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![1, 100, 200, 365],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 12,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 31, 9, 0, 0),
+                ymd_hms(1997, 12, 31, 21, 0, 0),
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 1, 1, 21, 0, 0),
+                ymd_hms(1998, 4, 10, 9, 0, 0),
+                ymd_hms(1998, 4, 10, 21, 0, 0),
+                ymd_hms(1998, 7, 19, 9, 0, 0),
+                ymd_hms(1998, 7, 19, 21, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_yeardayneg() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(8),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![-365, -266, -166, -1],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 12,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 31, 9, 0, 0),
+                ymd_hms(1997, 12, 31, 21, 0, 0),
+                ymd_hms(1998, 1, 1, 9, 0, 0),
+                ymd_hms(1998, 1, 1, 21, 0, 0),
+                ymd_hms(1998, 4, 10, 9, 0, 0),
+                ymd_hms(1998, 4, 10, 21, 0, 0),
+                ymd_hms(1998, 7, 19, 9, 0, 0),
+                ymd_hms(1998, 7, 19, 21, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_month_and_yearday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(4),
+            bymonth: vec![4, 7],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![1, 100, 200, 365],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 4, 10, 0, 0, 0),
+                ymd_hms(1998, 4, 10, 1, 0, 0),
+                ymd_hms(1998, 4, 10, 2, 0, 0),
+                ymd_hms(1998, 4, 10, 3, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_weekno() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![],
+            bysetpos: vec![],
+            byweekno: vec![20],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 5, 11, 0, 0, 0),
+                ymd_hms(1998, 5, 11, 1, 0, 0),
+                ymd_hms(1998, 5, 11, 2, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_weekno_and_weekday() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![0],
+            byhour: vec![],
+            bysetpos: vec![],
+            byweekno: vec![1],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 29, 0, 0, 0),
+                ymd_hms(1997, 12, 29, 1, 0, 0),
+                ymd_hms(1997, 12, 29, 2, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_weekno_and_weekday_large() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![6],
+            byhour: vec![],
+            bysetpos: vec![],
+            byweekno: vec![52],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 28, 0, 0, 0),
+                ymd_hms(1997, 12, 28, 1, 0, 0),
+                ymd_hms(1997, 12, 28, 2, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_weekno_and_weekday_last() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![6],
+            byhour: vec![],
+            bysetpos: vec![],
+            byweekno: vec![-1],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 12, 28, 0, 0, 0),
+                ymd_hms(1997, 12, 28, 1, 0, 0),
+                ymd_hms(1997, 12, 28, 2, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_weekno_and_weekday53() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![0],
+            byhour: vec![],
+            bysetpos: vec![],
+            byweekno: vec![53],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1998, 12, 28, 0, 0, 0),
+                ymd_hms(1998, 12, 28, 1, 0, 0),
+                ymd_hms(1998, 12, 28, 2, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_hour() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![6, 18],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 0, 0),
+                ymd_hms(1997, 9, 3, 6, 0, 0),
+                ymd_hms(1997, 9, 3, 18, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_minute() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![6, 18],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 6, 0),
+                ymd_hms(1997, 9, 2, 9, 18, 0),
+                ymd_hms(1997, 9, 2, 10, 6, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_second() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![6, 18],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 6),
+                ymd_hms(1997, 9, 2, 9, 0, 18),
+                ymd_hms(1997, 9, 2, 10, 0, 6),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_hour_and_minute() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![6, 18],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![6, 18],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 6, 0),
+                ymd_hms(1997, 9, 2, 18, 18, 0),
+                ymd_hms(1997, 9, 3, 6, 6, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_hour_and_second() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![6, 18],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![6, 18],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 0, 6),
+                ymd_hms(1997, 9, 2, 18, 0, 18),
+                ymd_hms(1997, 9, 3, 6, 0, 6),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_minute_and_second() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![6, 18],
+            bysecond: vec![6, 18],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 6, 6),
+                ymd_hms(1997, 9, 2, 9, 6, 18),
+                ymd_hms(1997, 9, 2, 9, 18, 6),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_hour_and_minute_and_second() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(5),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![6, 18],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![6, 18],
+            bysecond: vec![6, 18],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 18, 6, 6),
+                ymd_hms(1997, 9, 2, 18, 6, 18),
+                ymd_hms(1997, 9, 2, 18, 18, 6),
+                ymd_hms(1997, 9, 2, 18, 18, 18),
+                ymd_hms(1997, 9, 3, 6, 6, 6),
+            ],
+        );
+    }
+
+    #[test]
+    fn hourly_by_setpos() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::HOURLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            byweekday: vec![],
+            byhour: vec![],
+            bysetpos: vec![3, -3],
+            byweekno: vec![],
+            byminute: vec![15, 45],
+            bysecond: vec![15, 45],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            until: None,
+            wkst: 0,
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 15, 45),
+                ymd_hms(1997, 9, 2, 9, 45, 15),
+                ymd_hms(1997, 9, 2, 10, 15, 45),
+            ],
+        );
+    }
+
+    #[test]
+    fn until_not_matching() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            until: Some(ymd_hms(1997, 9, 5, 8, 0, 0)),
+            wkst: 0,
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 9, 3, 9, 0, 0),
+                ymd_hms(1997, 9, 4, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn until_matching() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(4),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            until: Some(ymd_hms(1997, 9, 4, 9, 0, 0)),
+            wkst: 0,
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 9, 3, 9, 0, 0),
+                ymd_hms(1997, 9, 4, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn until_single() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(1),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            until: Some(ymd_hms(1997, 9, 2, 9, 0, 0)),
+            wkst: 0,
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(&mut options, &vec![ymd_hms(1997, 9, 2, 9, 0, 0)]);
+    }
+
+    #[test]
+    fn until_empty() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(1),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            until: Some(ymd_hms(1997, 9, 1, 9, 0, 0)),
+            wkst: 0,
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(&mut options, &vec![]);
+    }
+
+    #[test]
+    fn until_with_date() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::DAILY,
+            count: Some(4),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            until: Some(ymd_hms(1997, 9, 5, 0, 0, 0)),
+            wkst: 0,
+            byweekday: vec![],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            tzid: None,
+            interval: 1,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 9, 3, 9, 0, 0),
+                ymd_hms(1997, 9, 4, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn wkst_interval_mo() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            until: None,
+            wkst: 0,
+            byweekday: vec![1, 6],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            tzid: None,
+            interval: 2,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 9, 7, 9, 0, 0),
+                ymd_hms(1997, 9, 16, 9, 0, 0),
+            ],
+        );
+    }
+
+    #[test]
+    fn wkst_interval_su() {
+        let mut options = ParsedOptions {
+            freq: Frequenzy::WEEKLY,
+            count: Some(3),
+            bymonth: vec![],
+            dtstart: ymd_hms(1997, 9, 2, 9, 0, 0),
+            until: None,
+            wkst: 6,
+            byweekday: vec![1, 6],
+            byhour: vec![9],
+            bysetpos: vec![],
+            byweekno: vec![],
+            byminute: vec![0],
+            bysecond: vec![0],
+            byyearday: vec![],
+            bymonthday: vec![],
+            bynweekday: vec![],
+            bynmonthday: vec![],
+            tzid: None,
+            interval: 2,
+            byeaster: None,
+        };
+        test_recurring(
+            &mut options,
+            &vec![
+                ymd_hms(1997, 9, 2, 9, 0, 0),
+                ymd_hms(1997, 9, 14, 9, 0, 0),
+                ymd_hms(1997, 9, 16, 9, 0, 0),
+            ],
+        );
+    }
 }