Assertion messages

• Of course you can provide your own assertion message:

    public void testHelloWorld5() 
      throws SAXException, IOException, ParserConfigurationException {
        
        String expected = "<GREETING>Hello World!</GREETING>";
        String actual = "<GREETING>\nHello World!\n</GREETING>";
        assertXMLEqual("White space seems to count", expected, actual);
        
    }