@Test
    void testFileNotFound() {
        VipStatusConfig config = new VipStatusConfig(new VipStatusConfig.Builder().accessdisk(true)
                .statusfile("/VipStatusHandlerTestCaseFileThatReallyReallyShouldNotExist"));
        VipStatusHandler handler = new VipStatusHandler(Executors.newCachedThreadPool(), config, metric);
        NotFoundResponseHandler responseHandler = new NotFoundResponseHandler();
        HttpRequest request = createRequest();
        BufferedContentChannel requestContent = createChannel();
        handler.handleRequest(request, requestContent, responseHandler);
        ByteBuffer b = responseHandler.channel.read();
        byte[] asBytes = new byte[b.remaining()];
        b.get(asBytes);
        assertEquals(
                VipStatusHandler.StatusResponse.COULD_NOT_FIND_STATUS_FILE,
                Utf8.toString(asBytes));
    }
Check semantics of VIP status handler. Do note this handler does not need to
care about the incoming URI, that's 100% handled in JDIsc by the binding
pattern.

@author Steinar Knutsen
container-core/src/test/java/com/yahoo/container/handler/VipStatusHandlerTestCase.java