Method test_with_open

Lib/test/test_io.py:664–675

(self)

            self.large_file_ops(f)

    def test_with_open(self):
        for bufsize in (0, 100):
            with self.open(os_helper.TESTFN, "wb", bufsize) as f:
                f.write(b"xxx")
            self.assertEqual(f.closed, True)
            try:
                with self.open(os_helper.TESTFN, "wb", bufsize) as f:
                    1/0
            except ZeroDivisionError:
                self.assertEqual(f.closed, True)
            else:
                self.fail("1/0 didn't raise an exception")

    # issue 5008
    def test_append_mode_tell(self):