ProcessDefinition processDefinition = new ProcessDefinition();
Node node = new Node("n");
processDefinition.addNode(node);
node.addEvent(new Event("one"));
node.addEvent(new Event("two"));
node.addEvent(new Event("three"));
printXml(processDefinition);
Element element = toXmlAndParse( processDefinition, "/process-definition/node" );
assertNotNull(element);
assertEquals(3, element.elements("event").size());
assertEquals("one", ((Element)element.elements("event").get(0)).attributeValue("type"));