Fixed #28758 -- Fixed RangeMax/MinValueValidators crash with unbound ranges.

1 files changed, 8 insertions, 2 deletions

diff --git a/tests/postgres_tests/test_ranges.py b/tests/postgres_tests/test_ranges.py
index d87ad36438..f368736384 100644
--- a/tests/postgres_tests/test_ranges.py
+++ b/tests/postgres_tests/test_ranges.py
@@ -408,18 +408,24 @@ class TestValidators(PostgreSQLTestCase):
     def test_max(self):
         validator = RangeMaxValueValidator(5)
         validator(NumericRange(0, 5))
+        msg = 'Ensure that this range is completely less than or equal to 5.'
         with self.assertRaises(exceptions.ValidationError) as cm:
             validator(NumericRange(0, 10))
-        self.assertEqual(cm.exception.messages[0], 'Ensure that this range is completely less than or equal to 5.')
+        self.assertEqual(cm.exception.messages[0], msg)
         self.assertEqual(cm.exception.code, 'max_value')
+        with self.assertRaisesMessage(exceptions.ValidationError, msg):
+            validator(NumericRange(0, None))  # an unbound range
 
     def test_min(self):
         validator = RangeMinValueValidator(5)
         validator(NumericRange(10, 15))
+        msg = 'Ensure that this range is completely greater than or equal to 5.'
         with self.assertRaises(exceptions.ValidationError) as cm:
             validator(NumericRange(0, 10))
-        self.assertEqual(cm.exception.messages[0], 'Ensure that this range is completely greater than or equal to 5.')
+        self.assertEqual(cm.exception.messages[0], msg)
         self.assertEqual(cm.exception.code, 'min_value')
+        with self.assertRaisesMessage(exceptions.ValidationError, msg):
+            validator(NumericRange(None, 10))  # an unbound range
 
 
 class TestFormField(PostgreSQLTestCase):