test_mailbox.py 文件源码

def test_popitem(self, iterations=10):
        # Get and remove an arbitrary (key, message) using popitem()
        keys = []
        for i in xrange(10):
            keys.append(self._box.add(self._template % i))
        seen = []
        for i in xrange(10):
            key, msg = self._box.popitem()
            self.assertIn(key, keys)
            self.assertNotIn(key, seen)
            seen.append(key)
            self.assertEqual(int(msg.get_payload()), keys.index(key))
        self.assertEqual(len(self._box), 0)
        for key in keys:
            self.assertRaises(KeyError, lambda: self._box[key])