def test_difference_add(self): s = CustomSet() d = CustomSet() s.add('little') s.add('mice') s.add('men') d.add('little') d.add('mice') d.add('woman') c = d.difference(s) assert c.contains('woman') == True
def test_difference_fail(self): s = CustomSet(['animals','love','the','free','land']) d = CustomSet(['animals','love','the','free', 'land']) c = d.difference(s) assert c.contains('land') == False
def test_difference(self): s = CustomSet(['animals','love','the','free','land']) d = CustomSet(['animals','love','the','cage']) c = d.difference(s) assert c.contains('cage') == True