feat(validators): contest status form validator tests

apps/contests/tests.py

@@ -70,21 +70,18 @@ def test_cancelled(self) -> None:
         self.assertEqual(ContestStatus.CANCELLED, "Cancelled")
 
     def test_valid_status(self) -> None:
-        valid_status = ContestStatus.RUNNING
-        self.assertIsNone(ContestStatus.validate_contest_status(valid_status))
-
-    def test_invalid_status(self) -> None:
-        invalid_status = "InvalidStatus"
-        with self.assertRaises(ValueError) as context:
-            ContestStatus.validate_contest_status(
-                ContestStatus(invalid_status)
-            )
-        expected_message = (
-            f"Invalid contest status: {invalid_status}. "
-            f"Must be one of {list(ContestStatus.__members__.values())}"
-        )
-        actual_message = str(context.exception)
-        self.assertEqual(expected_message, actual_message)
+        valid_statuses = [
+            ContestStatus.PENDING,
+            ContestStatus.RUNNING,
+            ContestStatus.FINISHED,
+            ContestStatus.CANCELLED,
+        ]
+
+        for status in valid_statuses:
+            with self.subTest(status=status):
+                self.assertIsNone(
+                    ContestStatus.validate_contest_status(status)
+                )
 
 
 class ContestModelFormTestCase(TestCase):