Function _assert_invalidated

test/engine/test_reconnect.py:1001–1007

(fn, *args)

def _assert_invalidated(fn, *args):
    try:
        fn(*args)
        assert False
    except tsa.exc.DBAPIError as e:
        if not e.connection_invalidated:
            raise


class RealPrePingEventHandlerTest(fixtures.TestBase):