/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jbpm.tutorial.helloworld;
import junit.framework.TestCase;
import org.jbpm.graph.def.ProcessDefinition;
import org.jbpm.graph.exe.ProcessInstance;
import org.jbpm.graph.exe.Token;
public class HelloWorldTest extends TestCase {
public void testHelloWorldProcess() {
// This method shows a process definition and one execution
// of the process definition. The process definition has
// 3 nodes: an unnamed start-state, a state 's' and an
// end-state named 'end'.
// The next line parses a piece of xml text into a
// ProcessDefinition. A ProcessDefinition is the formal
// description of a process represented as a java object.
ProcessDefinition processDefinition = ProcessDefinition.parseXmlString(
"<process-definition>" +
" <start-state>" +
" <transition to='s' />" +
" </start-state>" +
" <state name='s'>" +
" <transition to='end' />" +
" </state>" +
" <end-state name='end' />" +
"</process-definition>"
);
// The next line creates one execution of the process definition.
// After construction, the process execution has one main path
// of execution (=the root token) that is positioned in the
// start-state.
ProcessInstance processInstance =
new ProcessInstance(processDefinition);
// After construction, the process execution has one main path
// of execution (=the root token).
Token token = processInstance.getRootToken();
// Also after construction, the main path of execution is positioned
// in the start-state of the process definition.
assertSame(processDefinition.getStartState(), token.getNode());
// Let's start the process execution, leaving the start-state
// over its default transition.
token.signal();
// The signal method will block until the process execution
// enters a wait state.
// The process execution will have entered the first wait state
// in state 's'. So the main path of execution is not
// positioned in state 's'
assertSame(processDefinition.getNode("s"), token.getNode());
// Let's send another signal. This will resume execution by
// leaving the state 's' over its default transition.
token.signal();
// Now the signal method returned because the process instance
// has arrived in the end-state.
assertSame(processDefinition.getNode("end"), token.getNode());
}
public void testThreeStateProcess() {
// This test shows a process similar to the simplest process
// above, but now there are 3 states instead of one, which will
// result in 2 extra signals to be given by the test.
ProcessDefinition processDefinition = ProcessDefinition.parseXmlString(
"<process-definition>" +
" <start-state>" +
" <transition to='phase one' />" +
" </start-state>" +
" <state name='phase one'>" +
" <transition to='phase two' />" +
" </state>" +
" <state name='phase two'>" +
" <transition to='phase three' />" +
" </state>" +
" <state name='phase three'>" +
" <transition to='end' />" +
" </state>" +
" <end-state name='end' />" +
"</process-definition>"
);
ProcessInstance processInstance =
new ProcessInstance(processDefinition);
Token token = processInstance.getRootToken();
assertSame(processDefinition.getStartState(), token.getNode());
token.signal();
assertSame(processDefinition.getNode("phase one"), token.getNode());
token.signal();
assertSame(processDefinition.getNode("phase two"), token.getNode());
token.signal();
assertSame(processDefinition.getNode("phase three"), token.getNode());
token.signal();
assertSame(processDefinition.getNode("end"), token.getNode());
}
}