def test_NonAlphabeticaltoUPPERCASE(self): string = strtoupper('Hi{}|?!@#$%^') self.assertEqual(string, 'HI{}|?!@#$%^')
def test_UPPERCASEtoUPPERCASE(self): string = strtoupper('HI') self.assertEqual(string, 'HI')
def test_MiXeDCasetoUPPERCASE(self): string = strtoupper('Hi') self.assertEqual(string, 'HI')
def test_NoneString(self): string = strtoupper(None) self.assertEqual(string, None)
def test_lowercasToUPPERCASE(self): string = strtoupper('hi') self.assertEqual(string, 'HI')