test_weakset.py 文件源码

def test_sub_and_super(self):
        pl, ql, rl = map(lambda s: [ustr(c) for c in s], ['ab', 'abcde', 'def'])
        p, q, r = map(WeakSet, (pl, ql, rl))
        self.assertTrue(p < q)
        self.assertTrue(p <= q)
        self.assertTrue(q <= q)
        self.assertTrue(q > p)
        self.assertTrue(q >= p)
        self.assertFalse(q < r)
        self.assertFalse(q <= r)
        self.assertFalse(q > r)
        self.assertFalse(q >= r)
        self.assertTrue(set('a').issubset('abc'))
        self.assertTrue(set('abc').issuperset('a'))
        self.assertFalse(set('a').issubset('cbs'))
        self.assertFalse(set('cbs').issuperset('a'))