test_urllib2.py 文件源码

def test_errors(self):
        h = urllib.request.HTTPErrorProcessor()
        o = h.parent = MockOpener()

        url = "http://example.com/"
        req = Request(url)
        # all 2xx are passed through
        r = MockResponse(200, "OK", {}, "", url)
        newr = h.http_response(req, r)
        self.assertIs(r, newr)
        self.assertFalse(hasattr(o, "proto"))  # o.error not called
        r = MockResponse(202, "Accepted", {}, "", url)
        newr = h.http_response(req, r)
        self.assertIs(r, newr)
        self.assertFalse(hasattr(o, "proto"))  # o.error not called
        r = MockResponse(206, "Partial content", {}, "", url)
        newr = h.http_response(req, r)
        self.assertIs(r, newr)
        self.assertFalse(hasattr(o, "proto"))  # o.error not called
        # anything else calls o.error (and MockOpener returns None, here)
        r = MockResponse(502, "Bad gateway", {}, "", url)
        self.assertIsNone(h.http_response(req, r))
        self.assertEqual(o.proto, "http")  # o.error called
        self.assertEqual(o.args, (req, r, 502, "Bad gateway", {}))