protected Rule createRule(String expr) 
{
        Pattern pattern = factory.createPattern(expr);
        return new Rule(pattern);
}

 public static  void main(String[] args) 
{
         
        TestRunner.run(RuleTest.class);
}

 public  void testDocument() 
{
        Rule rule = createRule("/");
        Document document = factory.createDocument();
        document.addElement("foo");
        assertTrue("/ matches document", rule.matches(document));
        assertTrue("/ does not match root element", !rule.matches(document
                .getRootElement()));
}

 protected  void testGreater(String expr1,
    String expr2) throws Exception 
{
        System.out.println("parsing: " + expr1 + " and " + expr2);
        Rule r1 = createRule(expr1);
        Rule r2 = createRule(expr2);
        System.out.println("rule1: " + r1 + " rule2: " + r2);
        int value = r1.compareTo(r2);
        System.out.println("Comparison: " + value);
        assertTrue("r1  > r2", value  > 0);
        ArrayList list = new ArrayList();
        list.add(r1);
        list.add(r2);
        Collections.sort(list);
        assertTrue("r2 should be first", list.get(0) == r2);
        assertTrue("r1 should be next", list.get(1) == r1);
        list = new ArrayList();
        list.add(r2);
        list.add(r1);
        Collections.sort(list);
        assertTrue("r2 should be first", list.get(0) == r2);
        assertTrue("r1 should be next", list.get(1) == r1);
        /*
         * TreeSet set = new TreeSet(); set.add( r1 ); set.add( r2 );
         * 
         * assertTrue( "r2 should be first", set.first() == r2 ); assertTrue(
         * "r1 should be next", set.last() == r1 );
         * 
         * Object[] array = set.toArray();
         * 
         * assertTrue( "r2 should be first", array[0] == r2 ); assertTrue( "r1
         * should be next", array[1] == r1 );
         * 
         * set = new TreeSet(); set.add( r2 ); set.add( r1 );
         * 
         * assertTrue( "r2 should be first", set.first() == r2 ); assertTrue(
         * "r1 should be next", set.last() == r1 );
         * 
         * array = set.toArray();
         * 
         * assertTrue( "r2 should be first", array[0] == r2 ); assertTrue( "r1
         * should be next", array[1] == r1 );
         */
}

 public  void testOrder() throws Exception 
{
        testGreater("foo", "*");
}

 public  void testTextMatchesCDATA() 
{
        CDATA cdata = factory.createCDATA("<  >&");
        Rule rule = createRule("text()");
        assertTrue("text() matches CDATA", rule.matches(cdata));
}