def test_one_char(self): self.assertEqual(isPalinPerm("a"), True)
def test_two_chars(self): self.assertEqual(isPalinPerm("ab"), True)
def test_all_spaces(self): self.assertEqual(isPalinPerm(" "), True)
def test_four_chars_false(self): self.assertEqual(isPalinPerm("adcd"), False)
def test_four_chars_true(self): self.assertEqual(isPalinPerm("adad"), True)
def test_three_chars_false(self): self.assertEqual(isPalinPerm("acd"), False)
def test_three_chars_true(self): self.assertEqual(isPalinPerm("aba"), True)