LibJS: Implement Temporal.Now.plainDateTime()

1 files changed, 33 insertions, 0 deletions

diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Now/Now.plainDateTime.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Now/Now.plainDateTime.js
new file mode 100644
index 0000000000..cab863834c
--- /dev/null
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Now/Now.plainDateTime.js
@@ -0,0 +1,33 @@
+describe("correct behavior", () => {
+    test("length is 1", () => {
+        expect(Temporal.Now.plainDateTime).toHaveLength(1);
+    });
+
+    test("basic functionality", () => {
+        const calendar = new Temporal.Calendar("iso8601");
+        const plainDateTime = Temporal.Now.plainDateTime(calendar);
+        expect(plainDateTime).toBeInstanceOf(Temporal.PlainDateTime);
+        expect(plainDateTime.calendar).toBe(calendar);
+    });
+
+    test("custom time zone", () => {
+        const calendar = new Temporal.Calendar("iso8601");
+        const timeZone = {
+            getOffsetNanosecondsFor() {
+                return 86400000000000;
+            },
+        };
+        const plainDateTime = Temporal.Now.plainDateTime(calendar);
+        const plainDateTimeWithOffset = Temporal.Now.plainDateTime(calendar, timeZone);
+        // Yes, this will fail if a day, month, or year change happens between the above two lines :^)
+        // FIXME: enable these once the getters are implemented
+        // expect(plainDateTimeWithOffset.year).toBe(plainDateTime.year);
+        // expect(plainDateTimeWithOffset.month).toBe(plainDateTime.month);
+        // expect(plainDateTimeWithOffset.day).toBe(plainDateTime.day + 1);
+        // expect(plainDateTimeWithOffset.hour).not.toBe(plainDateTime.hour);
+        // expect(plainDateTimeWithOffset.minute).not.toBe(plainDateTime.minute);
+        // expect(plainDateTimeWithOffset.second).not.toBe(plainDateTime.second);
+        // expect(plainDateTimeWithOffset.millisecond).not.toBe(plainDateTime.millisecond);
+        // microsecond, and nanosecond not checked here as they could easily be the same for both
+    });
+});