/*
    * Licensed to the Apache Software Foundation (ASF) under one or more
    * contributor license agreements.  See the NOTICE file distributed with
    * this work for additional information regarding copyright ownership.
    * The ASF licenses this file to You under the Apache License, Version 2.0
    * (the "License"); you may not use this file except in compliance with
    * the License.  You may obtain a copy of the License at
    *
    *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.commons.scxml2.env;
  
  import org.apache.commons.scxml2.SCXMLListener;
  import org.apache.commons.scxml2.model.EnterableState;
  import org.apache.commons.scxml2.model.State;
  import org.apache.commons.scxml2.model.Transition;
  import org.apache.commons.scxml2.model.TransitionTarget;
  import org.junit.After;
  import org.junit.Assert;
  import org.junit.Before;
  import org.junit.Test;
  
  /**
   * Unit tests {@link org.apache.commons.scxml2.env.AbstractSCXMLListener}.
   */
  public class AbstractSCXMLListenerTest {
  
      // Test data
      private State to;
      private State from;
      private Transition transition;
      private boolean heardOnEntry;
      private boolean heardOnExit;
      private boolean heardOnTransition;
  
      /**
       * Set up instance variables required by this test case.
       */
      @Before
      public void setUp() {
          to = new State();
          from = new State();
          transition = new Transition();
          heardOnEntry = false;
          heardOnExit = false;
          heardOnTransition = false;
      }
  
      /**
       * Tear down instance variables required by this test case.
       */
      @After
      public void tearDown() {
          to = null;
          from = null;
          transition = null;
      }
  
      @Test
      public void testAbstractSCXMLListener0() {
          SCXMLListener listener0 = new AbstractSCXMLListener() {
                  /**
                   * @see SCXMLListener#onEntry(EnterableState)
                   */
                  @Override
                  public void onEntry(EnterableState state) {
                      heardOnEntry = true;
                  }
  
                  /**
                   * @see SCXMLListener#onExit(EnterableState)
                   */
                  @Override
                  public void onExit(EnterableState state) {
                      heardOnExit = true;
                  }
  
                  /**
                   * @see SCXMLListener#onTransition(TransitionTarget,TransitionTarget,Transition,String)
                   */
                  @Override
                  public void onTransition(TransitionTarget from, TransitionTarget to,
                                           Transition transition, String event) {
                      heardOnTransition = true;
                  }
              };
  
          Assert.assertFalse("heardOnEntry == false", heardOnEntry);
          Assert.assertFalse("heardOnExit == false", heardOnExit);
          Assert.assertFalse("heardOnTransition == false", heardOnTransition);
          listener0.onEntry(to);
          listener0.onExit(to);
          listener0.onTransition(from, to, transition, null);
         Assert.assertTrue("heardOnEntry", heardOnEntry);
         Assert.assertTrue("heardOnExit", heardOnExit);
         Assert.assertTrue("heardOnTransition", heardOnTransition);
     }
 
     @Test
     public void testAbstractSCXMLListener1() {
         SCXMLListener listener1 = new AbstractSCXMLListener() {
                 /**
                  * @see SCXMLListener#onEntry(EnterableState)
                  */
                 @Override
                 public void onEntry(EnterableState state) {
                     heardOnEntry = true;
                 }
 
                 /**
                  * @see SCXMLListener#onExit(EnterableState)
                  */
                 @Override
                 public void onExit(EnterableState state) {
                     heardOnExit = true;
                 }
             };
 
         Assert.assertFalse("heardOnEntry == false", heardOnEntry);
         Assert.assertFalse("heardOnExit == false", heardOnExit);
         Assert.assertFalse("heardOnTransition == false", heardOnTransition);
         listener1.onEntry(to);
         listener1.onExit(to);
         listener1.onTransition(from, to, transition, null);
         Assert.assertTrue("heardOnEntry", heardOnEntry);
         Assert.assertTrue("heardOnExit", heardOnExit);
         Assert.assertFalse("heardOnTransition == false", heardOnTransition);
     }
 
     @Test
     public void testAbstractSCXMLListener2() {
         SCXMLListener listener2 = new AbstractSCXMLListener() {
                 /**
                  * @see SCXMLListener#onEntry(EnterableState)
                  */
                 @Override
                 public void onEntry(EnterableState state) {
                     heardOnEntry = true;
                 }
             };
 
             Assert.assertFalse("heardOnEntry == false", heardOnEntry);
             Assert.assertFalse("heardOnExit == false", heardOnExit);
             Assert.assertFalse("heardOnTransition == false", heardOnTransition);
         listener2.onEntry(to);
         listener2.onExit(to);
         listener2.onTransition(from, to, transition, null);
         Assert.assertTrue("heardOnEntry", heardOnEntry);
         Assert.assertFalse("heardOnExit == false", heardOnExit);
         Assert.assertFalse("heardOnTransition == false", heardOnTransition);
     }
 
     @Test
     public void testAbstractSCXMLListener3() {
         SCXMLListener listener3 = new AbstractSCXMLListener() {
                 // empty
             };
 
             Assert.assertFalse("heardOnEntry == false", heardOnEntry);
             Assert.assertFalse("heardOnExit == false", heardOnExit);
             Assert.assertFalse("heardOnTransition == false", heardOnTransition);
         listener3.onEntry(to);
         listener3.onExit(to);
         listener3.onTransition(from, to, transition, null);
         Assert.assertFalse("heardOnEntry == false", heardOnEntry);
         Assert.assertFalse("heardOnExit == false", heardOnExit);
         Assert.assertFalse("heardOnTransition == false", heardOnTransition);
     }
 }