test_descr.py 文件源码

def test_spam_lists(self):
        # Testing spamlist operations...
        import copy, xxsubtype as spam

        def spamlist(l, memo=None):
            import xxsubtype as spam
            return spam.spamlist(l)

        # This is an ugly hack:
        copy._deepcopy_dispatch[spam.spamlist] = spamlist

        self.binop_test(spamlist([1]), spamlist([2]), spamlist([1,2]), "a+b",
                       "__add__")
        self.binop_test(spamlist([1,2,3]), 2, 1, "b in a", "__contains__")
        self.binop_test(spamlist([1,2,3]), 4, 0, "b in a", "__contains__")
        self.binop_test(spamlist([1,2,3]), 1, 2, "a[b]", "__getitem__")
        self.sliceop_test(spamlist([1,2,3]), 0, 2, spamlist([1,2]), "a[b:c]",
                          "__getitem__")
        self.setop_test(spamlist([1]), spamlist([2]), spamlist([1,2]), "a+=b",
                        "__iadd__")
        self.setop_test(spamlist([1,2]), 3, spamlist([1,2,1,2,1,2]), "a*=b",
                        "__imul__")
        self.unop_test(spamlist([1,2,3]), 3, "len(a)", "__len__")
        self.binop_test(spamlist([1,2]), 3, spamlist([1,2,1,2,1,2]), "a*b",
                        "__mul__")
        self.binop_test(spamlist([1,2]), 3, spamlist([1,2,1,2,1,2]), "b*a",
                        "__rmul__")
        self.set2op_test(spamlist([1,2]), 1, 3, spamlist([1,3]), "a[b]=c",
                         "__setitem__")
        self.setsliceop_test(spamlist([1,2,3,4]), 1, 3, spamlist([5,6]),
                             spamlist([1,5,6,4]), "a[b:c]=d", "__setitem__")
        # Test subclassing
        class C(spam.spamlist):
            def foo(self): return 1
        a = C()
        self.assertEqual(a, [])
        self.assertEqual(a.foo(), 1)
        a.append(100)
        self.assertEqual(a, [100])
        self.assertEqual(a.getstate(), 0)
        a.setstate(42)
        self.assertEqual(a.getstate(), 42)