def test_basic_functionality(self):
        import using_testlib_10 as v1
        import using_testlib_20 as v2
        self.assertEqual(v1.a_function(), 'from version 1.0')
        self.assertEqual(v2.a_function(), 'from version 2.0')

        self.assert_(sys.modules in 'testlib')
dataset/ETHPy150Open mitsuhiko/multiversion/tests/tests.py/SimpleTestCase.test_basic_functionality/swapped operands of `in`