我在对使用 Kenneth Reitz请求库的函数进行单元测试时遇到问题：
以下功能要进行单元测试：
def getPage(url):
r = requests.get(url)
r.raise_for_status() # raises HTTPError if necessary
dom = fromstring(r.text)
dom.make_links_absolute(url)
return dom
我的单元测试目前如下。（尽管显然这不起作用。）
@patch('requests.Response')
@patch('requests.Response.raise_for_status', return_value=None)
@patch('requests.get', return_value=requests.Response)
def test_getPage(mock_requests_get, mock_RFS, mock_response):
with open("domtest.htm", "r") as testfile:
mock_response.text = testfile.read()
dom = getPage('http://www.test.com')
eq_(dom, dom_test)
生成的回溯是：
Traceback (most recent call last):
File "C:\Anaconda\lib\site-packages\nose\case.py", line 197, in runTest
self.test(*self.arg)
File "C:\Anaconda\lib\site-packages\mock.py", line 1201, in patched
return func(*args, **keywargs)
File "C:\...\test_myfile.py", line 79, in test_getPage
dom = getPage('http://www.test.com')
File "C:\...\myfile.py", line 67, in getPage
r.raise_for_status() # raises HTTPError if necessary
TypeError: unbound method raise_for_status() must be called with Response instance as first argument (got nothing instead)
一个单元如何使用模拟而不是临时网络服务器来测试这样的功能？我尝试腌制响应并将其设置为 requests.get() 的返回值，但无法腌制。