Method assertRaisesMessage

Lib/test/test_fractions.py:305–313

Asserts that callable(*args, **kwargs) raises exc_type(message).

(self, exc_type, message,
                            callable, *args, **kwargs)

        self.assertListEqual(list(map(type, expected)), list(map(type, actual)))

    def assertRaisesMessage(self, exc_type, message,
                            callable, *args, **kwargs):
        """Asserts that callable(*args, **kwargs) raises exc_type(message)."""
        try:
            callable(*args, **kwargs)
        except exc_type as e:
            self.assertEqual(message, str(e))
        else:
            self.fail("%s not raised" % exc_type.__name__)

    def testInit(self):
        self.assertEqual((0, 1), _components(F()))