def test_one_char_true(self): self.assertEqual(isPermutation("a", "a"), True)
def test_one_char_false(self): self.assertEqual(isPermutation("a", "b"), False)
def test_three_chars_false(self): self.assertEqual(isPermutation("ftz", "dfs"), False)
def test_three_chars_true(self): self.assertEqual(isPermutation("abc", "cab"), True)
def test_dif_length_false(self): self.assertEqual(isPermutation("acc", "ac"), False)
def test_two_chars_false(self): self.assertEqual(isPermutation("ac", "ab"), False)
def test_two_char_true(self): self.assertEqual(isPermutation("ab", "ba"), True)