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.functor.core.comparator;
18  
19  import static org.junit.Assert.assertEquals;
20  
21  import java.util.Collections;
22  
23  import org.apache.commons.functor.BaseFunctorTest;
24  import org.junit.Test;
25  
26  /**
27   * @version $Revision: 1171255 $ $Date: 2011-09-15 22:27:39 +0200 (Thu, 15 Sep 2011) $
28   * @author Rodney Waldhoff
29   */
30  public class TestMax extends BaseFunctorTest {
31  
32      // Framework
33      // ------------------------------------------------------------------------
34  
35      protected Object makeFunctor() {
36          return Max.instance();
37      }
38  
39      private Integer MIN = new Integer(Integer.MIN_VALUE);
40      private Integer MINUS_TWO = new Integer(-2);
41      private Integer ZERO = new Integer(0);
42      private Integer ONE = new Integer(1);
43      private Integer MAX = new Integer(Integer.MAX_VALUE);
44      // Tests
45      // ------------------------------------------------------------------------
46  
47      @Test
48      public void testEvaluate() {
49          Max<Integer> f = Max.instance();
50          assertEquals(ONE,f.evaluate(ONE,ONE));
51          assertEquals(ONE,f.evaluate(ZERO,ONE));
52          assertEquals(ONE,f.evaluate(ONE,ZERO));
53          assertEquals(MAX,f.evaluate(ONE,MAX));
54          assertEquals(MAX,f.evaluate(MIN,MAX));
55          assertEquals(MINUS_TWO,f.evaluate(MIN,MINUS_TWO));
56      }
57  
58      @Test
59      @SuppressWarnings("unchecked")
60      public void testEquals() {
61          Max<Comparable<?>> f = Max.instance();
62          assertObjectsAreEqual(f,f);
63          assertObjectsAreEqual(f,Max.instance());
64          assertObjectsAreEqual(f,new Max<Comparable<?>>(ComparableComparator.INSTANCE));
65          assertObjectsAreNotEqual(f,new Max<Comparable<?>>(Collections.<Comparable<?>>reverseOrder()));
66      }
67  }