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.composite;
18  
19  import static org.junit.Assert.assertEquals;
20  
21  import org.apache.commons.functor.BaseFunctorTest;
22  import org.apache.commons.functor.core.Constant;
23  import org.apache.commons.functor.core.LeftIdentity;
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 TestConditionalBinaryFunction extends BaseFunctorTest {
31  
32      // Functor Testing Framework
33      // ------------------------------------------------------------------------
34  
35      protected Object makeFunctor() {
36          return new ConditionalBinaryFunction<Object, Object, String>(
37              Constant.TRUE,
38              Constant.of("left"),
39              Constant.of("right"));
40      }
41  
42      // Tests
43      // ------------------------------------------------------------------------
44  
45      @Test
46      public void testEvaluate() throws Exception {
47          ConditionalBinaryFunction<Boolean, Object, String> f = new ConditionalBinaryFunction<Boolean, Object, String>(
48              LeftIdentity.PREDICATE,
49              Constant.of("left"),
50              Constant.of("right"));
51          assertEquals("left",f.evaluate(Boolean.TRUE,null));
52          assertEquals("right",f.evaluate(Boolean.FALSE,null));
53      }
54  
55      @Test
56      public void testEquals() throws Exception {
57          ConditionalBinaryFunction<Boolean, Object, String> f = new ConditionalBinaryFunction<Boolean, Object, String>(
58              LeftIdentity.PREDICATE,
59              Constant.of("left"),
60              Constant.of("right"));
61          assertEquals(f,f);
62          assertObjectsAreEqual(f,new ConditionalBinaryFunction<Boolean, Object, String>(
63                  LeftIdentity.PREDICATE,
64                  Constant.of("left"),
65                  Constant.of("right")));
66          assertObjectsAreNotEqual(f,new ConditionalBinaryFunction<Boolean, Object, Object>(
67              LeftIdentity.PREDICATE,
68              Constant.of(null),
69              Constant.of("right")));
70          assertObjectsAreNotEqual(f,new ConditionalBinaryFunction<Boolean, Object, String>(
71              Constant.TRUE,
72              Constant.of("left"),
73              Constant.of("right")));
74      }
75  }