test: avhz#142 - tests for denmark calendar

src/time/calendars/denmark.rs

@@ -71,4 +71,74 @@ impl Calendar for Denmark {
 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 #[cfg(test)]
-mod tests {}
+mod test_denmark {
+    use super::*;
+    use time::macros::datetime;
+
+    // Test to verify the name() method.
+    #[test]
+    fn test_name() {
+        let calendar = Denmark;
+        assert_eq!(calendar.name(), "Denmark");
+    }
+
+    // Test to verify if weekends are not considered business days.
+    #[test]
+    fn test_is_weekend() {
+        let calendar = Denmark;
+        let sat = datetime!(2023-08-26 12:00:00 UTC);
+        let sun = datetime!(2023-08-27 12:00:00 UTC);
+        assert!(!calendar.is_business_day(sat));
+        assert!(!calendar.is_business_day(sun));
+    }
+
+    // Test to verify if the is_business_day() method properly accounts for public holidays.
+    #[test]
+    fn test_is_public_holiday() {
+        let calendar = Denmark;
+        let new_years_day = datetime!(2023-01-01 12:00:00 UTC);
+        let maunday_thursday = datetime!(2023-04-06 12:00:00 UTC);
+        let good_friday = datetime!(2023-04-07 12:00:00 UTC);
+        let easter_monday = datetime!(2023-04-10 12:00:00 UTC);
+        let general_prayer_day = datetime!(2023-05-05 12:00:00 UTC);
+        let ascension = datetime!(2023-05-18 12:00:00 UTC);
+        let day_after_ascension = datetime!(2023-05-19 12:00:00 UTC);
+        let whit_monday = datetime!(2023-05-29 12:00:00 UTC);
+        let constitution_day = datetime!(2023-06-05 12:00:00 UTC);
+        let christmas_eve = datetime!(2023-12-24 12:00:00 UTC);
+        let christmas = datetime!(2023-12-25 12:00:00 UTC);
+        let boxing_day = datetime!(2023-12-26 12:00:00 UTC);
+        let new_years_eve = datetime!(2023-12-31 12:00:00 UTC);
+
+        assert!(!calendar.is_business_day(new_years_day));
+        assert!(!calendar.is_business_day(maunday_thursday));
+        assert!(!calendar.is_business_day(good_friday));
+        assert!(!calendar.is_business_day(easter_monday));
+        assert!(!calendar.is_business_day(general_prayer_day));
+        assert!(!calendar.is_business_day(ascension));
+        assert!(!calendar.is_business_day(day_after_ascension));
+        assert!(!calendar.is_business_day(whit_monday));
+        assert!(!calendar.is_business_day(constitution_day));
+        assert!(!calendar.is_business_day(christmas_eve));
+        assert!(!calendar.is_business_day(christmas));
+        assert!(!calendar.is_business_day(boxing_day));
+        assert!(!calendar.is_business_day(new_years_eve));
+    }
+
+    // Test to verify if the is_business_day() method properly accounts for regular business days.
+    #[test]
+    fn test_is_regular_business_day() {
+        let calendar = Denmark;
+        let regular_day1 = datetime!(2023-03-15 12:00:00 UTC);
+        let regular_day2 = datetime!(2023-07-11 12:00:00 UTC);
+        let regular_day3 = datetime!(2023-09-15 12:00:00 UTC);
+        let regular_day4 = datetime!(2008-05-02 12:00:00 UTC); // Day after ascension (before 2009)
+        let regular_day5 = datetime!(2024-04-26 12:00:00 UTC); // General Prayer Day (after 2023)
+
+        assert!(calendar.is_business_day(regular_day1));
+        assert!(calendar.is_business_day(regular_day2));
+        assert!(calendar.is_business_day(regular_day3));
+        assert!(calendar.is_business_day(regular_day4));
+        assert!(calendar.is_business_day(regular_day5));
+    }
+}