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.adapter;
18  
19  import static org.junit.Assert.*;
20  
21  import org.apache.commons.functor.BaseFunctorTest;
22  import org.apache.commons.functor.BinaryFunction;
23  import org.apache.commons.functor.core.Constant;
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 TestBinaryPredicateBinaryFunction extends BaseFunctorTest {
31  
32      // Functor Testing Framework
33      // ------------------------------------------------------------------------
34  
35      protected Object makeFunctor() {
36          return new BinaryPredicateBinaryFunction<Object, Object>(Constant.TRUE);
37      }
38  
39      // Tests
40      // ------------------------------------------------------------------------
41  
42      @Test
43      public void testTestWhenTrue() throws Exception {
44          BinaryFunction<Object, Object, Boolean> f = new BinaryPredicateBinaryFunction<Object, Object>(Constant.TRUE);
45          assertTrue(f.evaluate(null,null));
46      }
47  
48      @Test
49      public void testTestWhenFalse() throws Exception {
50          BinaryFunction<Object, Object, Boolean> f = new BinaryPredicateBinaryFunction<Object, Object>(Constant.FALSE);
51          assertFalse(f.evaluate(null,null));
52      }
53  
54      @Test
55      public void testEquals() throws Exception {
56          BinaryFunction<Object, Object, Boolean> f = new BinaryPredicateBinaryFunction<Object, Object>(Constant.TRUE);
57          assertEquals(f,f);
58          assertObjectsAreEqual(f,new BinaryPredicateBinaryFunction<Object, Object>(Constant.TRUE));
59          assertObjectsAreNotEqual(f,Constant.of("x"));
60          assertObjectsAreNotEqual(f,new BinaryPredicateBinaryFunction<Object, Object>(Constant.FALSE));
61      }
62  
63      @Test
64      public void testAdaptNull() throws Exception {
65          assertNull(BinaryFunctionBinaryPredicate.adapt(null));
66      }
67  
68      @Test
69      public void testAdapt() throws Exception {
70          assertNotNull(BinaryPredicateBinaryFunction.adapt(Constant.TRUE));
71      }
72  }