Method expect_handler

tests/test_web_functional.py:429–433

(request)

        @asyncio.coroutine
        def expect_handler(request):
            nonlocal expect_received
            expect_received = True
            if request.version == HttpVersion11:
                request.transport.write(b"HTTP/1.1 100 Continue\r\n\r\n")

        @asyncio.coroutine
        def go():