public void test_init_called() {
        final PathMappingHelper helper = new PathMappingHelper();
        helper.init();
        assertNotNull(helper.cachedPathMappingList);
    }

    public void test_replaceUrl_withEmptyUrl() {
        final String sessionId = "test";
        final List<PathMapping> pathMappingList = new ArrayList<PathMapping>();
        final PathMapping pathMapping = new PathMapping();