request.removeHeaders("Connection");
request.addHeader("X-Unknown-Header", "some-value");
final HttpRequestWrapper downgraded = HttpRequestWrapper.wrap(
new BasicHttpRequest("GET", "/foo", HttpVersion.HTTP_1_1));
downgraded.removeHeaders("Connection");
downgraded.addHeader("X-Unknown-Header", "some-value");
EasyMock.expect(
mockBackend.execute(
EasyMock.isA(HttpRoute.class),