public void testBasicProtocolDowngrade() throws Exception {

        final HttpProcessor httprocessor = Mockito.mock(HttpProcessor.class);

        final ConnectionReuseStrategy connReuseStrategy = Mockito.mock(ConnectionReuseStrategy.class);

        final HttpResponseFactory responseFactory = Mockito.mock(HttpResponseFactory.class);

        final HttpRequestHandlerMapper handlerResolver = Mockito.mock(HttpRequestHandlerMapper.class);



        final HttpService httpservice = new HttpService(

                httprocessor,

                connReuseStrategy,

                responseFactory,

                handlerResolver);

        final HttpCoreContext context = HttpCoreContext.create();

        final HttpServerConnection conn = Mockito.mock(HttpServerConnection.class);

        final HttpRequest request = new BasicHttpRequest("GET", "/", new HttpVersion(20, 45));

        Mockito.when(conn.receiveRequestHeader()).thenReturn(request);

        final HttpResponse response = new BasicHttpResponse(200, "OK");

        Mockito.when(responseFactory.newHttpResponse(200, context)).thenReturn(response);

        Mockito.when(connReuseStrategy.keepAlive(request, response, context)).thenReturn(Boolean.FALSE);



        httpservice.handleRequest(conn, context);



        Mockito.verify(responseFactory).newHttpResponse(200, context);

    }