# required-method: assertNotEqual

class TestAssertNotEqual(TestCase):
    def test_you(self):
        assert abc != 'xxx'
        assert abc != 'xxx'

    def test_me(self):
        assert 123 != xxx+y

    def test_everybody(self):
        assert 'abc' != 'def'

    def test_message(self):
        assert 123+z != xxx+z, error_message
        assert 123 != xxx+z, error_message
