Refs #26022 -- Used context manager version of assertRaises in tests.

1 files changed, 3 insertions, 2 deletions

diff --git a/tests/datatypes/tests.py b/tests/datatypes/tests.py
index a69855da1f..612b1ae2e4 100644
--- a/tests/datatypes/tests.py
+++ b/tests/datatypes/tests.py
@@ -82,8 +82,9 @@ class DataTypesTestCase(TestCase):
         an error if given a timezone-aware datetime object."""
         dt = datetime.datetime(2008, 8, 31, 16, 20, tzinfo=utc)
         d = Donut(name='Bear claw', consumed_at=dt)
-        self.assertRaises(ValueError, d.save)
-        # ValueError: MySQL backend does not support timezone-aware datetimes.
+        # MySQL backend does not support timezone-aware datetimes.
+        with self.assertRaises(ValueError):
+            d.save()
 
     def test_datefield_auto_now_add(self):
         """Regression test for #10970, auto_now_add for DateField should store