value = "";
        assertFalse(htmlTransformer.isValidPath(value));

        value = " ";
        assertFalse(htmlTransformer.isValidPath(value));
    }

    public void test_encodeUrl_valid() {
        String url = "http://TEST.com/hoge/;jsessionid?p=id&test=テスト&u=18718&v=123%3d#test";
        String result = "http://TEST.com/hoge/;jsessionid?p=id&test=%E3%83%86%E3%82%B9%E3%83%88&u=18718&v=123%3d#test";