def test_class_representatives(self): cseg = Contour([0, 1, 3, 2]) result = [Contour([0, 1, 3, 2]), Contour([3, 2, 0, 1]), Contour([2, 3, 1, 0]), Contour([1, 0, 2, 3])] self.assertEqual(cseg.class_representatives(), result)