Integrating Hong-Kong holidays for 2021

refs #496

Changelog.md

@@ -4,6 +4,7 @@
 
 - Making the Israel calendar more efficient (#498).
 - Fixing duplicated holidays in Hong-Kong and Hong-Kong Bank holiday calendars (#496).
+- Integrating Hong-Kong holidays for 2021 (#496).
 
 ## v9.0.0 (2020-04-24)
 

workalendar/asia/hong_kong.py

@@ -46,6 +46,7 @@ class HongKong(WesternCalendar, ChineseNewYearCalendar, ChristianMixin):
 
         days = super().get_variable_days(year)
         chingming = solar_term(year, 15, 'Asia/Hong_Kong')
+        solar_term_chingming = chingming
         dupe_holiday = [chingming for day in days if chingming == day[0]]
         if dupe_holiday:
             # Roll Chingming forward a day as it clashes with another holiday
@@ -68,6 +69,15 @@ class HongKong(WesternCalendar, ChineseNewYearCalendar, ChristianMixin):
                 (date(year, 12, 27), "The second weekday after Christmas")
             )
 
+        # Special case when Ching Ming and Easter overlap
+        # Ching Ming is shifted to easter monday (but it's handled elsewhere)
+        # Easter Monday is also shifted
+        easter_sunday = self.get_easter_sunday(year)
+        if easter_sunday == solar_term_chingming:
+            days.append((
+                easter_sunday + timedelta(days=2),
+                "The day following Easter Monday"
+            ))
         return days
 
 

workalendar/tests/test_asia.py

@@ -215,7 +215,7 @@ class HongKongTest(GenericCalendarTest):
     def test_holidays_2020(self):
         # https://www.gov.hk/en/about/abouthk/holiday/2020.htm
         holidays = self.cal.holidays_set(2020)
-        self.assertIn(date(2020, 1, 1), holidays)    # New Year (shifted)
+        self.assertIn(date(2020, 1, 1), holidays)    # New Year
         self.assertIn(date(2020, 1, 25), holidays)   # Chinese new year
         self.assertIn(date(2020, 1, 27), holidays)   # Chinese new year
         self.assertIn(date(2020, 1, 28), holidays)   # Chinese new year
@@ -235,6 +235,29 @@ class HongKongTest(GenericCalendarTest):
         # Special: Boxing day is not shifted, because it's not a SUN
         self.assertNotIn(date(2020, 12, 28), holidays)
 
+    def test_holidays_2021(self):
+        # https://www.gov.hk/en/about/abouthk/holiday/2021.htm
+        holidays = self.cal.holidays_set(2021)
+        self.assertIn(date(2021, 1, 1), holidays)    # New Year
+        self.assertIn(date(2021, 2, 12), holidays)   # Chinese new year
+        self.assertIn(date(2021, 2, 13), holidays)   # Chinese new year
+        self.assertIn(date(2021, 2, 14), holidays)   # Chinese new year (SUN)
+        self.assertIn(date(2021, 2, 15), holidays)   # Chinese new year
+        self.assertIn(date(2021, 4, 2), holidays)    # Good Friday
+        self.assertIn(date(2021, 4, 3), holidays)    # Day after Good Friday
+        self.assertIn(date(2021, 4, 4), holidays)    # Ching Ming
+        self.assertIn(date(2021, 4, 5), holidays)    # Ching Ming shift+Easter
+        self.assertIn(date(2021, 4, 6), holidays)    # Day after Easter Monday
+        self.assertIn(date(2021, 5, 1), holidays)    # Labour Day
+        self.assertIn(date(2021, 5, 19), holidays)   # Buddha's Birthday
+        self.assertIn(date(2021, 6, 14), holidays)   # Tuen Ng Festival
+        self.assertIn(date(2021, 7, 1), holidays)    # HK SAR Establishment Day
+        self.assertIn(date(2021, 9, 22), holidays)   # Day after Mid-Autumn
+        self.assertIn(date(2021, 10, 1), holidays)   # National Day
+        self.assertIn(date(2021, 10, 14), holidays)  # Chung Yeung Festival
+        self.assertIn(date(2021, 12, 25), holidays)  # Christmas Day
+        self.assertIn(date(2021, 12, 27), holidays)  # First weekday after Xmas
+
     def test_are_saturdays_working_days(self):
         # Let's start with february 6th.
         start = date(2020, 2, 6)