Method test_disallow_instantiation

Lib/test/test_hashlib.py:1169–1182

(self)

    @support.cpython_only
    def test_disallow_instantiation(self):
        for algorithm, constructors in self.constructors_to_test.items():
            if algorithm.startswith(("sha3_", "shake", "blake")):
                # _sha3 and _blake types can be instantiated
                continue
            # all other types have DISALLOW_INSTANTIATION
            for constructor in constructors:
                # In FIPS mode some algorithms are not available raising ValueError
                try:
                    h = constructor()
                except ValueError:
                    continue
                with self.subTest(constructor=constructor):
                    support.check_disallow_instantiation(self, type(h))

    @unittest.skipUnless(HASH is not None, 'need _hashlib')
    def test_hash_disallow_instantiation(self):