def test_one_char_return_one(self):
a = ''
b = 'a'
result = self.assertEqual(dissimilarity(a,b), 1)
def test_empty_chars_return_zero(self):
a = ''
b = ''
result = self.assertEqual(dissimilarity(a,b), 0)
def test_two_non_matching_string(self):
a = 'aa'
b = 'abcde'
result = self.assertEqual(dissimilarity(a,b), 5)
def test_two_different_strings(self):
a = 'aaa'
b = 'bbb'
result = self.assertEqual(dissimilarity(a,b), 6)
def test_two_different_chars_return_two(self):
a = 'a'
b = 'b'
result = self.assertEqual(dissimilarity(a,b), 2)
def test_two_similar_chars_return_0(self):
a = 'b'
b = 'b'
results = self.assertEqual(dissimilarity(a,b), 0)
