def test_empty(self): self.assertFalse(has_vowel(""))
def test_rhythm(self): self.assertFalse(has_vowel("rhythm"))
def test_symbols(self): self.assertFalse(has_vowel("%^&"))
def test_fly(self): self.assertFalse(has_vowel("fly"))
def test_yes(self): self.assertTrue(has_vowel("yes"))
def test_no(self): self.assertTrue(has_vowel("no"))
def test_exit(self): self.assertTrue(has_vowel("exit"))