docs + more tests

3 files changed, 25 insertions, 4 deletions

diff --git a/src/iter/poslist.rs b/src/iter/poslist.rs
index 635c1d3..8e468aa 100644
--- a/src/iter/poslist.rs
+++ b/src/iter/poslist.rs
@@ -51,8 +51,7 @@ pub fn build_poslist(
             timeset[timepos as usize].minute as u32,
             timeset[timepos as usize].second as u32,
         );
-        // XXX: can this ever be in the array?
-        // - compare the actual date instead?
+        
         if !poslist.iter().any(|&p| p == res) {
             poslist.push(res);
         }
diff --git a/src/lib.rs b/src/lib.rs
index 00e6805..806b942 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -6,7 +6,7 @@
 //! properties are represented by the `RRule` type and the rdate and exdate properties are represented by the DateTime<Tz> type
 //! provided by the [chrono](https://crates.io/crates/chrono) and [chrono-tz](https://crates.io/crates/chrono-tz) crates.
 //!
-//! # Building RRule and RRuleSet types
+//! # Building RRule and RRuleSet
 //! Both of the types implements the `std::str::FromStr` trait so that they can be parsed and built from a `str`. `RRule`
 //! can additionally be constructured from the `Option` type which help build the recurrence rule. `RRuleSet`
 //! can also be built by composing mutliple `RRule`s for its rrule and exrule properties and DateTime<Tz> for its
@@ -78,7 +78,7 @@
 //! Construct RRuleSet from one rrule and exrule.
 //! The rrule will occur weekly on Tuesday and Wednesday and the exrule
 //! will occur weekly on Wednesday, and therefore the end result will contain
-//! weekly recurrences just on Wednesday.
+//! weekly recurrences on Wednesday only.
 //! ```
 //! extern crate rrule;
 //! extern crate chrono;
diff --git a/src/utils.rs b/src/utils.rs
index ef09d54..161e6c2 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -13,3 +13,25 @@ pub fn is_some_and_not_empty<T>(v: &Option<Vec<T>>) -> bool {
         None => false,
     }
 }
+
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    #[test]
+    fn python_mod(){
+        assert_eq!(pymod(2, -3), -1);
+        assert_eq!(pymod(-2, 3), 1);
+        assert_eq!(pymod(-2, -3), -2);
+        assert_eq!(pymod(-3, -3), 0);
+        assert_eq!(pymod(3, 3), 0);
+        assert_eq!(pymod(2, 3), 2);
+        assert_eq!(pymod(4, 3), 1);
+        assert_eq!(pymod(3, 3), 0);
+        assert_eq!(pymod(6, 3), 0);
+        assert_eq!(pymod(-6, 3), 0);
+        assert_eq!(pymod(-6, -3), 0);
+        assert_eq!(pymod(6, -3), 0);
+    }
+}
\ No newline at end of file