Method test_keys

Lib/test/mapping_tests.py:325–333

(self)

        self.assertTrue(bool(self._full_mapping({"x": "y"})) is True)

    def test_keys(self):
        BasicTestMappingProtocol.test_keys(self)
        d = self._empty_mapping()
        self.assertEqual(list(d.keys()), [])
        d = self._full_mapping({'a': 1, 'b': 2})
        k = d.keys()
        self.assertIn('a', k)
        self.assertIn('b', k)
        self.assertNotIn('c', k)

    def test_values(self):
        BasicTestMappingProtocol.test_values(self)