decisionhandlertest.java

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 * 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
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 */
package org.jbpm.jpdl.exe;

import junit.framework.TestCase;

import org.jbpm.graph.def.ProcessDefinition;
import org.jbpm.graph.exe.ExecutionContext;
import org.jbpm.graph.exe.ProcessInstance;
import org.jbpm.graph.node.DecisionHandler;

public class DecisionHandlerTest extends TestCase {

  public static class LeadEvaluator implements DecisionHandler {
    private static final long serialVersionUID = 1L;

    public String decide(ExecutionContext executionContext) {
      int budget = ((Number)executionContext.getContextInstance().getVariable("budget")).intValue();
      if (budget>1000) return "important lead";
      else if (budget>100) return "lead";
      return "beggars";
    }
  }

  ProcessDefinition processDefinition = ProcessDefinition.parseXmlString(
    "<process-definition>" +
    "  <start-state>" +
    "    <transition to='d' />" +
    "  </start-state>" +
    "  <decision name='d'>" +
    "    <handler class='org.jbpm.jpdl.exe.DecisionHandlerTest$LeadEvaluator'/>" +
    "    <transition name='important lead' to='harras them'/>" +
    "    <transition name='lead' to='put it in the lead db'/>" +
    "    <transition name='beggars' to='forget about it'/>" +
    "  </decision>" +
    "  <state name='harras them' />" +
    "  <state name='put it in the lead db' />" +
    "  <state name='forget about it' />" +
    "</process-definition>" );
  
  public void testBudgetHignerThenThousand() {
    ProcessInstance processInstance = new ProcessInstance(processDefinition);
    processInstance.getContextInstance().setVariable("budget", new Integer(3500));
    processInstance.signal();
    
    assertEquals(processDefinition.getNode("harras them"), processInstance.getRootToken().getNode());
  }

  public void testBudgetBetweenHundredAndThousand() {
    ProcessInstance processInstance = new ProcessInstance(processDefinition);
    processInstance.getContextInstance().setVariable("budget", new Integer(350));
    processInstance.signal();
    
    assertEquals(processDefinition.getNode("put it in the lead db"), processInstance.getRootToken().getNode());
  }

  public void testSmallBudget() {
    ProcessInstance processInstance = new ProcessInstance(processDefinition);
    processInstance.getContextInstance().setVariable("budget", new Integer(35));
    processInstance.signal();
    
    assertEquals(processDefinition.getNode("forget about it"), processInstance.getRootToken().getNode());
  }

}