command_test.py 文件源码

def test_command_with_stderr_no_stdout_err_loop(self):
        # TODO make it work under windows
        if os.name == 'nt':
            return

        f = io.StringIO()
        with redirect_stdout(f):
            launch_cmd_displays_output(['wget', '--debug', '--tries', '3', 'http://doesnotexist'], False, True)
        res = f.getvalue()
        expected = re.compile('.*\.\.\. and more.*', re.MULTILINE)
        self.assertRegex(res, expected)

        try:
            from contextlib import redirect_stderr
        except Exception:
            return

        f = io.StringIO()
        with redirect_stderr(f):
            launch_cmd_displays_output(self.cmd_nook, False, True)
        res = f.getvalue()
        self.assertEqual('', res)