test_web_functional.py 文件源码

def test_expect_default_handler_unknown(loop, test_client):
    """Test default Expect handler for unknown Expect value.

    A server that does not understand or is unable to comply with any of
    the expectation values in the Expect field of a request MUST respond
    with appropriate error status. The server MUST respond with a 417
    (Expectation Failed) status if any of the expectations cannot be met
    or, if there are other problems with the request, some other 4xx
    status.

    http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.20
    """
    @asyncio.coroutine
    def handler(request):
        yield from request.post()
        pytest.xfail('Handler should not proceed to this point in case of '
                     'unknown Expect header')

    app = web.Application()
    app.router.add_post('/', handler)
    client = yield from test_client(app)

    resp = yield from client.post('/', headers={'Expect': 'SPAM'})
    assert 417 == resp.status