oversizeFileName := fmt.Sprintf("%032768s", "a")
	normalFileName := fmt.Sprintf("%0255s", "a")

	// check file with oversize name.
	if !logFileNameIsTooLong(oversizeFileName) {
		t.Error("failed to check oversize filename")
	}

	// check file with normal name which doesn't exist.
	if logFileNameIsTooLong(normalFileName) {
		t.Error("failed to check normal filename")
	}

	// check file with normal name which does exist.

	if logFileNameIsTooLong(actual) {
		http.Error(resp, "file not found", http.StatusNotFound)
		return
	}
	http.ServeFile(resp.ResponseWriter, req.Request, actual)
}

func logFileListHandler(req *restful.Request, resp *restful.Response) {
	logdir := "/var/log"
	http.ServeFile(resp.ResponseWriter, req.Request, logdir)
}