Python 如何模拟/修补应用程序引擎'；他是一个装修工吗？

AppEngine的python客户端库具有以下装饰器

@decorator.oauth_required

from auth import decorator

class ListUsersHandler(webapp2.RequestHandler):

  @decorator.oauth_required
  def get(self):
    self.response.write(_RenderUserListTemplate())

但是，为单元测试模拟/修补实际上并不简单。例如，在下面的get处理程序中，我需要去掉oauth装饰器

@decorator.oauth_required

from auth import decorator

class ListUsersHandler(webapp2.RequestHandler):

  @decorator.oauth_required
  def get(self):
    self.response.write(_RenderUserListTemplate())

我试过下面的方法

from mock import patch
patch('decorator.oauth_required', lambda x: x).start()
import user

class MyTest(unittest.TestCase):
  def setUp(self):
    app = webapp2.WSGIApplication([('/', user.ListUsersHandler)])
    self.testapp = webtest.TestApp(app)

  def testListUsersHandler(self):
    response = self.testapp.get('/')
    self.assertTrue(('list tokens' in response))

但是，我看到的这个错误，似乎并没有给出多少线索

Traceback (most recent call last):
  File "user_test.py", line 44, in testAbc
    response = self.testapp.get('/')
  File "/usr/local/lib/python2.7/dist-packages/webtest/app.py", line 322, in get
    expect_errors=expect_errors)
  File "/usr/local/lib/python2.7/dist-packages/webtest/app.py", line 605, in do_request
    res = req.get_response(app, catch_exc_info=True)
  File "/google_appengine/lib/webob-1.2.3/webob/request.py", line 1292, in send
application, catch_exc_info=True)
  File "/google_appengine/lib/webob-1.2.3/webob/request.py", line 1269, in call_application
    return (captured[0], captured[1], app_iter, captured[2])
IndexError: list index out of range

---

您需要提供一个模仿

@decorator.oauth_required

功能的函数，而不仅仅是

lambda x:x

。如果您从处理程序中删除了decorator并运行了测试，它会工作吗？@JoshTriiJohnston：是的，如果删除了decorator，测试肯定会工作。我确实尝试过“剔除”装饰器，但不确定如何使用python mock实现。我下面的补丁不工作（'decorator.oauth_required'，lambda x:x）.start（）