def test_both_empty_string(self):
     self.assertTrue(check_permutation("", ""))
 def test_empty_string(self):
     self.assertFalse(check_permutation("", "Empty test"))
 def test_permutation(self):
     self.assertTrue(check_permutation("Permutation", "rmtaontiPeu"))
 def test_same_length_non_permutation(self):
     self.assertFalse(check_permutation("Hello", "World"))
 def test_different_length_strings(self):
     self.assertFalse(check_permutation("Hey", "Hello you"))
def test_check_permutation():
    assert check_permutation("hello", "hello") is True
    assert check_permutation("hello", "olleh") is True
    assert check_permutation("hello", "holel") is True
    assert check_permutation("hello", "lehol") is True
    assert check_permutation("helo", "hello") is False