如何测试新的 Django 1.10+ 中间件类

Question

我正在将现有的中间件升级到新样式的 1.10+ Django 中间件。

之前是这样的：

class ThreadLocalMiddleware(MiddlewareMixin):
    """ Simple middleware that adds the request object in thread local storage."""

    _thread_locals = local()

    def process_request(self, request):
        _thread_locals.request = request

    def process_response(self, request, response):
        if hasattr(_thread_locals, 'request'):
            del _thread_locals.request
        return response

    def process_exception(self, request, exception):
        if hasattr(_thread_locals, 'request'):
            del _thread_locals.request

改写为新样式后：

class ThreadLocalMiddleware:

    _thread_locals = local()

    def __init__(self, get_response=None):
        self.get_response = get_response

    def __call__(self, request):
        _thread_locals.request = request

        response = self.get_response(request)

        if hasattr(_thread_locals, 'request'):
            del _thread_locals.request
        return response

    def process_exception(self, request, exception):
        if hasattr(_thread_locals, 'request'):
            del _thread_locals.request

我的问题是如何对中间件在_thread_locals中设置request进行单元测试？以前它就像在我的单元测试中调用 process_request 方法一样简单。现在我只有 __call__ 方法，它会在最后擦除变量。

看django的中间件测试，他们仍然使用向后兼容class允许他们保留旧的测试，我想知道它被删除后他们将如何测试它。

Answer 1

最后我用了一个类似的测试。 get_response_callback 在中间件的预请求工作完成后被调用。

def test_middleware():

    def get_response_callback(req):
        assert ThreadLocalMiddleware._thread_locals.request

    middleware = ThreadLocalMiddleware(get_response_callback)
    request = RequestFactory().get('/')
    request.user = AnonymousUser()

    middleware(request)
    assert hasattr(ThreadLocalMiddleware._thread_locals, 'request') == False

如何测试新的 Django 1.10+ 中间件类

How to test new Django 1.10+ MIDDLEWARE classes

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如何测试新的 Django 1.10+ 中间件 类

How to test new Django 1.10+ MIDDLEWARE classes

python

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如何测试新的 Django 1.10+ 中间件类