Method captured_stderr_with_buffer

Lib/test/test_calendar.py:1083–1092

(self)

    @contextlib.contextmanager
    def captured_stderr_with_buffer(self):
        orig_stderr = sys.stderr
        buffer = io.BytesIO()
        sys.stderr = io.TextIOWrapper(buffer)
        try:
            yield sys.stderr
        finally:
            sys.stderr.flush()
            sys.stderr.buffer.seek(0)
            sys.stderr = orig_stderr

    def run_cli_ok(self, *args):
        with self.captured_stdout_with_buffer() as stdout: