test_urllib2.py 文件源码

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

        req = Request("http://example.com")
        # all 2xx are passed through
        r = mechanize._response.test_response()
        newr = h.http_response(req, r)
        self.assertTrue(r is newr)
        self.assertTrue(not hasattr(o, "proto"))  # o.error not called
        r = mechanize._response.test_response(code=202, msg="Accepted")
        newr = h.http_response(req, r)
        self.assertTrue(r is newr)
        self.assertTrue(not hasattr(o, "proto"))  # o.error not called
        r = mechanize._response.test_response(code=206, msg="Partial content")
        newr = h.http_response(req, r)
        self.assertTrue(r is newr)
        self.assertTrue(not hasattr(o, "proto"))  # o.error not called
        # anything else calls o.error (and MockOpener returns None, here)
        r = mechanize._response.test_response(code=502, msg="Bad gateway")
        self.assertTrue(h.http_response(req, r) is None)
        self.assertEqual(o.proto, "http")  # o.error called
        self.assertEqual(o.args, (req, r, 502, "Bad gateway", AlwaysEqual()))