Method test_unexpected_error

Lib/test/test_tempfile.py:1179–1188

(self)

        self.assertEqual(os.listdir(dir), [])

    def test_unexpected_error(self):
        dir = tempfile.mkdtemp()
        self.addCleanup(os_helper.rmtree, dir)
        with mock.patch('tempfile._TemporaryFileWrapper') as mock_ntf, \
             mock.patch('io.open', mock.mock_open()) as mock_open:
            mock_ntf.side_effect = KeyboardInterrupt()
            with self.assertRaises(KeyboardInterrupt):
                tempfile.NamedTemporaryFile(dir=dir)
        mock_open().close.assert_called()
        self.assertEqual(os.listdir(dir), [])

    # How to test the mode and bufsize parameters?