Class StrWithStr

Lib/test/test_str.py:2439–2445

    def test_conversion(self):
        # Make sure __str__() works properly
        class StrWithStr(str):
            def __new__(cls, value):
                self = str.__new__(cls, "")
                self.value = value
                return self
            def __str__(self):
                return self.value

        self.assertTypedEqual(str(WithStr('abc')), 'abc')
        self.assertTypedEqual(str(WithStr(StrSubclass('abc'))), StrSubclass('abc'))