def test_count_vowels_example1(self):
     """ Test count_lowercase_vowels with a long string containing multiple
         lowercase vowels and at least one uppercase vowel."""
     actual = count_lowercase_vowels.count_lowercase_vowels('Happy Anniversary')
     expected = 4
     self.assertEqual(actual, expected)
 def test_count_vowels_example2(self):
     "Test count_lowercase_vowels on a string containing no vowels."""
     actual = count_lowercase_vowels.count_lowercase_vowels('xyz')
     expected = 0
     self.assertEqual(actual, expected)