def METHOD_NAME(self):
    x = [1,2]
    x += [3,4]
    x *= 2
    self.assertEqual(x, [1, 2, 3, 4, 1, 2, 3, 4])
    x = [1, 2, 3]
    y = x
    x[1:2] *= 2
    y[1:2] += [1]
    self.assertEqual(x, [1, 2, 1, 2, 3])
    self.assertTrue(x is y)