Method test_context_manager

tests/test_utils/tests.py:1335–1337

(self)

class AssertWarnsMessageTests(SimpleTestCase):
    def test_context_manager(self):
        with self.assertWarnsMessage(UserWarning, "Expected message"):
            warnings.warn("Expected message", UserWarning)

    def test_context_manager_failure(self):
        msg = "Expected message' not found in 'Unexpected message'"