def test1(self): expect = [ [1,2,3],[1,3,2], [2,1,3],[2,3,1], [3,1,2],[3,2,1] ] actual = Solution.permute("", [1,2,3]) self.assertEqual(expect, actual)
def test2(self): expect = [ [1,2],[2,1] ] actual = Solution.permute("", [1,2]) self.assertEqual(expect, actual)