fix bad test

Author: YashK2005

backend/tests/unit/test_match_service.py

@@ -376,7 +376,7 @@ async def test_create_match_copies_volunteer_availability(
     async def test_create_match_filters_past_and_invalid_times(
         self, db_session, participant_user, volunteer_with_mixed_availability
     ):
-        """Should filter out past times and non-half-hour times"""
+        """Should filter out past times and ensure all times are on half-hour boundaries"""
         try:
             match_service = MatchService(db_session)
             request = MatchCreateRequest(
@@ -392,16 +392,25 @@ async def test_create_match_filters_past_and_invalid_times(
             assert len(match.suggested_time_blocks) == 0
 
             detail = await match_service.volunteer_accept_match(match_id, volunteer_with_mixed_availability.id)
-            assert len(detail.suggested_time_blocks) == 2
 
-            # Should only have 2 valid future times (14:00, 14:30)
-            # Past time and :15 time should be filtered out
+            # Should have at least some suggested times (exact count depends on day of week due to 8-day projection)
+            assert len(detail.suggested_time_blocks) > 0
+
             db_session.refresh(match)
-            assert len(match.suggested_time_blocks) == 2
+            assert len(match.suggested_time_blocks) > 0
 
-            # Verify all are at :00 or :30
+            # Verify all times are in the future (past times filtered out)
+            now = datetime.now(timezone.utc)
             for block in match.suggested_time_blocks:
-                assert block.start_time.minute in {0, 30}
+                assert block.start_time >= now, f"Time block {block.start_time} is in the past"
+
+            # Verify all are at :00 or :30 (half-hour boundaries)
+            for block in match.suggested_time_blocks:
+                assert block.start_time.minute in {0, 30}, f"Time block {block.start_time} is not on half-hour boundary"
+
+            # Verify all times are in UTC
+            for block in match.suggested_time_blocks:
+                assert block.start_time.tzinfo == timezone.utc
 
             db_session.commit()
         except Exception: