def testNonLetter(self): self.assertFalse(isVowel("7"))
def testUpperCons(self): self.assertFalse(isVowel("D"))
def testUpperVowel(self): self.assertTrue(isVowel("E"))
def testLowerCons(self): self.assertFalse(isVowel("b"))
def testLowerVowel(self): self.assertTrue(isVowel("a"))