def METHOD_NAME(self):
    @unittest.skip("testing")
    class Mixin:
        def test_1(self):
            record.append(1)
    class Foo(Mixin, unittest.TestCase):
        pass
    record = []
    result = unittest.TestResult()
    test = Foo("test_1")
    suite = unittest.TestSuite([test])
    suite.run(result)
    self.assertEqual(result.skipped, [(test, "testing")])
    self.assertEqual(record, [])