def test_doesNotSkipOnDifferentError(self):
        """
        If there is a L{FailTest} that is not the intersphinx fetching error,
        it will be passed through.
        """
        @doNotFailOnNetworkError
        def inner():
            self.assertEqual("Error!!!!", "")

        try:
            inner()
        except Exception as e:
            self.assertIsInstance(e, FailTest)

        If there is a L{FailTest} that is not the intersphinx fetching error,
        it will be passed through.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/python/test/test_release.py