@Test
  public void logsEmptyStringWhenNoRefererInRequest() throws Exception {
    request
        .method(GET)
        .uri("/products?keyword=dogs")
        .addHeader(HeaderNames.USER_AGENT, "Mozilla/5.0 (compatible; MSIE 9.0; AOL 9.7)");

    apacheCommonLogger.handle(request, response);
    response.status(OK).body("a response with a size of 28").done();

    response.await();
    logRecords.assertEntries(
        contains(
            "192.168.0.1 - - [27/Jun/2012:18:04:00 +0100] \"GET /products?keyword=dogs HTTP/1.1\" 200 28 \"\" \"Mozilla/5.0 (compatible; MSIE 9.0; AOL 9.7)\""));
  }
  @Test
  public void logsEmptyStringWhenNoUserAgentInRequest() throws Exception {
    request
        .method(GET)
        .uri("/products?keyword=dogs")
        .addHeader(HeaderNames.REFERER, "http://lama/wool");

    apacheCommonLogger.handle(request, response);
    response.status(OK).body("a response with a size of 28").done();

    response.await();
    logRecords.assertEntries(
        contains(
            "192.168.0.1 - - [27/Jun/2012:18:04:00 +0100] \"GET /products?keyword=dogs HTTP/1.1\" 200 28 \"http://lama/wool\" \"\""));
  }