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

 protected  void setUp() throws Exception 
{
        super.setUp();
        document = new SAXReader().read(new File("xml/test/fields.xml"));
}

 public  void testSubstring() throws Exception 
{
        String[] results1 = {"1100", "1101"};
        testSubstring("//field[substring(@id,1,2)='11']", results1);
        String[] results2 = {"2111", "3111"};
        testSubstring("//field[substring(@id,3)='11']", results2);
}

 protected  void testSubstring(String path,
    String[] results) throws Exception 
{
        log("Using XPath: " + path);
        List list = document.selectNodes(path);
        log("Found: " + list);
        // Object object = list.get(0);
        // log( "(0) = " + object + " type: " + object.getClass() );
        int size = results.length;
        assertTrue("List should contain " + size + " results: " + list, list
                .size() == size);
        for (int i = 0; i <  size; i++) {
            Element element = (Element) list.get(i);
            assertEquals(element.attributeValue("id"), results[i]);
        }
}