def test_empty_strings_returns_zero(self): a = "" b = "" result = dissimilarity(a, b) self.assertEqual(result, 0)
def test_two_different_chars_return_two(self): a = "a" b = "b" result = dissimilarity(a, b) self.assertEqual(result, 2)
def test_two_of_differing_lengths(self): a = "a" b = "aa" result = dissimilarity(a, b) self.assertEqual(result, 1)
def test_one_char_returns_one(self): a = "a" b = "" result = dissimilarity(a, b) self.assertEqual(result, 1)
def test_two_similar_chars_give_zero(self): a = "a" b = "a" result = dissimilarity(a, b) self.assertEqual(result, 0)