Added additional unit test for not including today

cla_public/apps/contact/tests/test_api.py

@@ -6,9 +6,10 @@
 
 class TestGetValidCallbackDays(TestCase):
     def test_full_week(self):
-        full_week_of_datetimes = [datetime.datetime(2024, 1, day, 9, 0) for day in range(1, 7)]
+        full_week_of_datetimes = [datetime.datetime(2024, 1, day, 9, 0) for day in range(1, 8)]
         with patch("cla_public.apps.contact.api.get_valid_callback_slots", return_value=full_week_of_datetimes):
-            valid_days = get_valid_callback_days()
+            valid_days = get_valid_callback_days(include_today=True)
+            assert len(valid_days) == 7
             for index, day in enumerate(valid_days):
                 assert day.date() == full_week_of_datetimes[index].date()
 
@@ -25,6 +26,12 @@ def test_single_day(self):
         for index, day in enumerate(valid_days):
             assert day.date() == valid_slots[index].date()
 
+    def test_not_include_today(self):
+        full_week_of_datetimes = [datetime.datetime(2024, 1, day, 9, 0) for day in range(1, 7)]
+        with patch("cla_public.apps.contact.api.get_valid_callback_slots", return_value=full_week_of_datetimes):
+            valid_days = get_valid_callback_days(include_today=False)
+            assert len(valid_days) == 6
+
 
 class TestGetValidCallbackTimeslotsOnDate(TestCase):
     def test_single_day(self):