test_runner_redirection.py 文件源码

def test_restore(self):
        """ should restore from an enabled state """

        support.create_project(self, 'percy')
        support.add_step(self)

        project = cd.project.internal_project
        step = project.steps[0]

        redirection.enable(step)
        self.assertIsInstance(sys.stdout, redirection.RedirectBuffer)
        self.assertIsInstance(sys.stderr, redirection.RedirectBuffer)

        redirection.restore_default_configuration()
        self.assertNotIsInstance(sys.stdout, redirection.RedirectBuffer)
        self.assertNotIsInstance(sys.stderr, redirection.RedirectBuffer)
        self.assertEqual(sys.stdout, sys.__stdout__)
        self.assertEqual(sys.stderr, sys.__stderr__)