assertEquals(200, response.getStatus());
request.setResource(resource);
request.addHeader("If-Modified-Since", tomorrow);
responder = (FileResponder) FileResponder.makeResponder(request, context.getRootPagePath());
SimpleResponse notModifiedResponse = (SimpleResponse) responder.makeResponse(context, request);
assertEquals(304, notModifiedResponse.getStatus());
assertEquals("", notModifiedResponse.getContent());
assertMatches(HTTP_DATE_REGEXP, notModifiedResponse.getHeader("Date"));
assertNotNull(notModifiedResponse.getHeader("Cache-Control"));
assertNull(notModifiedResponse.getHeader("Content-Type"));
}