Method test_cmp_to_signature

Lib/test/test_functools.py:1238–1244

(self)

    @unittest.skipIf(support.MISSING_C_DOCSTRINGS,
                     "Signature information for builtins requires docstrings")
    def test_cmp_to_signature(self):
        sig = Signature.from_callable(self.cmp_to_key)
        self.assertEqual(str(sig), '(mycmp)')
        def mycmp(x, y):
            return y - x
        sig = Signature.from_callable(self.cmp_to_key(mycmp))
        self.assertEqual(str(sig), '(obj)')