XPath Example

    private Document plist;
    
    protected void setUp() 
      throws IOException, ParserConfigurationException, SAXException {
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        factory.setNamespaceAware(true); // NEVER FORGET THIS!
        DocumentBuilder builder = factory.newDocumentBuilder();
        
        plist = builder.parse(new File("thunderbirdplist.xml"));
    }
    
    public void testNoTwoKeyElementsAreAdjacent() 
      throws TransformerException {
       
        assertXpathNotExists(
         "//key/following-sibling::*[1]/self::key", 
         plist);
        
    }

    public void testCreatorCodeIsMOZM() throws TransformerException {
       
        assertXpathEvaluatesTo("MOZM",
         "//key[. = 'CFBundleSignature']/following-sibling::string",
         plist);
      
    }    
    
    
    public void testThereIsAnIcon() throws TransformerException {
       
        assertXpathExists(
         "//key[. = 'CFBundleIconFile']", 
         plist);
        assertXpathExists(
         "//key[. = 'CFBundleIconFile']/following-sibling::string", 
         plist);
      
    }