private GroovyJsonMessageValidator validator = new GroovyJsonMessageValidator();
@Test
public void testGroovyScriptValidation() throws ValidationException {
Message message = new DefaultMessage("{\"person\":{\"name\":\"Christoph\",\"age\":31," +
"\"pets\":[\"dog\",\"cat\"]}}");
String validationScript = "assert json.size() == 1 \n" +
"assert json.person.name == 'Christoph' \n" +
"assert json.person.age == 31 \n" +