def failUnlessOpenIDValueEquals(self, msg, key, expected, ns=None):
        if ns is None:
            ns = message.OPENID_NS

        actual = msg.getArg(ns, key)
        error_format = 'Wrong value for openid.%s: expected=%s, actual=%s'
        error_message = (key, expected, actual) % error_format
        self.assertEqual(expected, actual, error_message)
dataset/ETHPy150Open necaris/python3-openid/openid/test/support.py/OpenIDTestMixin.failUnlessOpenIDValueEquals/swapped operands of `%`