test_dist.py 文件源码

def test_show_help(self):
        # smoke test, just makes sure some help is displayed
        self.addCleanup(log.set_threshold, log._global_log.threshold)
        dist = Distribution()
        sys.argv = []
        dist.help = 1
        dist.script_name = 'setup.py'
        with captured_stdout() as s:
            dist.parse_command_line()

        output = [line for line in s.getvalue().split('\n')
                  if line.strip() != '']
        self.assertTrue(output)