import java.util.Collection;

import junit.framework.TestCase;

import org.jbpm.graph.def.ProcessDefinition;
import org.jbpm.graph.exe.ProcessInstance;
import org.jbpm.taskmgmt.exe.TaskInstance;

/**
 * 
 * @author Joram Barrez
 */
public class ScriptExpressionTest extends TestCase {
	
	/** */
	private static final String TEST_PROCESS = 
		  "<?xml version='1.0' encoding='UTF-8'?>"
		+ "<process-definition name='testProcess'>"
		+ "    <start-state>"
		+ "        <transition to='end' />"
		+ "    </start-state>"
		+ "    <task-node name='theTaskNode'>"
		+ "        <task name='theTask' />"
		+ "        <event type='task-create'>"
		+ "            <script>taskInstance.setVariable(\"theVar\", \"varValue\")</script>"
		+ "        </event>"
		+ "        <transition to='end' />"
		+ "    </task-node>"
		+ "    <end-state name='end' />"
		+ "</process-definition>";

	
	public void testExpression() {
		ProcessDefinition processDefinition = ProcessDefinition.parseXmlString(TEST_PROCESS);
		ProcessInstance processInstance = processDefinition.createProcessInstance();
		processInstance.signal();
		Collection<TaskInstance> tasks = processInstance.getTaskMgmtInstance().getTaskInstances();
		assertEquals(1, tasks.size());
		TaskInstance task = tasks.iterator().next();
		assertEquals("varValue", task.getVariable("theVar"));
		task.end();
		assertTrue(processInstance.getEnd() != null);
	}
	
	
}