1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *     http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.commons.scxml.semantics;
18  
19  import org.apache.commons.scxml.model.State;
20  import org.apache.commons.scxml.model.TransitionTarget;
21  
22  import junit.framework.Test;
23  import junit.framework.TestCase;
24  import junit.framework.TestSuite;
25  
26  public class TransitionTargetComparatorTest extends TestCase {
27  
28      public TransitionTargetComparatorTest(String testName) {
29          super(testName);
30      }
31  
32      public static Test suite() {
33          return new TestSuite(TransitionTargetComparatorTest.class);
34      }
35  
36      public static void main(String args[]) {
37          String[] testCaseName = { TransitionTargetComparatorTest.class.getName()};
38          junit.textui.TestRunner.main(testCaseName);
39      }
40  
41      private TransitionTargetComparator comparator;
42      
43      public void setUp() {
44          comparator = new TransitionTargetComparator();
45      }
46      
47      public void testComparatorEquals() {
48          TransitionTarget target = new State();
49          
50          assertEquals(0, comparator.compare(target, target));
51      }
52      
53      public void testComparatorNegative() {
54          TransitionTarget target1 = new State();
55          TransitionTarget target2 = new State();
56          
57          target1.setParent(target2);
58          
59          assertEquals(-1, comparator.compare(target1, target2));
60      }
61      
62      public void testComparatorPositive() {
63          TransitionTarget target1 = new State();
64          TransitionTarget target2 = new State();
65          
66          target2.setParent(target1);
67          
68          assertEquals(1, comparator.compare(target1, target2));
69      }
70      
71      public void testComparatorFirstMoreParents() {
72          TransitionTarget target1 = new State();
73          TransitionTarget parent1 = new State();
74          TransitionTarget parent2 = new State();
75  
76          parent1.setParent(parent2);
77          target1.setParent(parent1);
78          
79          TransitionTarget target2 = new State();
80          TransitionTarget parent3 = new State();
81          
82          target2.setParent(parent3);
83          
84          assertEquals(-1, comparator.compare(target1, target2));
85      }
86      
87      public void testComparatorSecondMoreParents() {
88          TransitionTarget target1 = new State();
89          TransitionTarget parent1 = new State();
90          TransitionTarget parent2 = new State();
91  
92          parent1.setParent(parent2);
93          target1.setParent(parent1);
94          
95          TransitionTarget target2 = new State();
96          TransitionTarget parent3 = new State();
97          
98          target2.setParent(parent3);
99          
100         assertEquals(1, comparator.compare(target2, target1)); // reversed
101     }
102     
103     public void testComparatorSameParents() {
104         TransitionTarget target1 = new State();
105         TransitionTarget parent1 = new State();
106 
107         target1.setParent(parent1);
108         
109         TransitionTarget target2 = new State();
110         TransitionTarget parent2 = new State();
111         
112         target2.setParent(parent2);
113         
114         assertEquals(0, comparator.compare(target1, target2));
115     }
116 }