def test_assertRaisesContextManager(self):
        """HyperlinkTestCase.assertRaises does not raise an AssertionError
        when used as a context manager with a suite that raises the
        expected exception.  The context manager stores the exception
        instance under its `exception` instance variable.

        """
        with self.hyperlink_test.assertRaises(_ExpectedException) as cm:
            raise _ExpectedException

        self.assertTrue(isinstance(cm.exception, _ExpectedException))
HyperlinkTestCase.assertRaises does not raise an AssertionError
        when used as a context manager with a suite that raises the
        expected exception.  The context manager stores the exception
        instance under its `exception` instance variable.

        
stackoverflow/venv/lib/python3.6/site-packages/hyperlink/test/test_common.py