bpo-46484:Add test for Calendar.iterweekdays (GH-30825)

(cherry picked from commit 48269ea)

Co-authored-by: 180909 <[email protected]>

Author: miss-islington

Lib/test/test_calendar.py

@@ -619,6 +619,14 @@ def test_itermonthdays2(self):
                 self.assertEqual(days[0][1], firstweekday)
                 self.assertEqual(days[-1][1], (firstweekday - 1) % 7)
 
+    def test_iterweekdays(self):
+        week0 = list(range(7))
+        for firstweekday in range(7):
+            cal = calendar.Calendar(firstweekday)
+            week = list(cal.iterweekdays())
+            expected = week0[firstweekday:] + week0[:firstweekday]
+            self.assertEqual(week, expected)
+
 
 class MonthCalendarTestCase(unittest.TestCase):
     def setUp(self):

Misc/ACKS

@@ -1875,6 +1875,7 @@ Jacob Walls
 Kevin Walzer
 Rodrigo Steinmuller Wanderley
 Dingyuan Wang
+Jiahua Wang
 Ke Wang
 Liang-Bo Wang
 Greg Ward