@Test
public void testPlus() throws Exception {

    URIElement n1, n2, n3;
    n1 = new URIElement();
    n2 = new URIElement();
    n3 = new URIElement(true);
    n1.add('A', n2);
    n2.add(SKIP, n1);
    n2.add(SKIP, n3);
    assertFalse(new URIVerifier(n1).verify(""));
    assertTrue(new URIVerifier(n1).verify("A"));
    assertTrue(new URIVerifier(n1).verify("AA"));
    assertTrue(new URIVerifier(n1).verify("AAA"));
    assertTrue(new URIVerifier(n1).verify("AAAA"));
    assertFalse(new URIVerifier(n1).verify("AAAA."));
}