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.assertEquals;
20  import static org.junit.Assert.assertNotNull;
21  import static org.junit.Assert.assertNull;
22  
23  import org.apache.commons.functor.BaseFunctorTest;
24  import org.apache.commons.functor.UnaryPredicate;
25  import org.apache.commons.functor.core.Constant;
26  import org.apache.commons.functor.core.RightIdentity;
27  import org.junit.Test;
28  
29  /**
30   * @version $Revision: 1171255 $ $Date: 2011-09-15 22:27:39 +0200 (Thu, 15 Sep 2011) $
31   * @author Rodney Waldhoff
32   */
33  public class TestLeftBoundPredicate extends BaseFunctorTest {
34  
35      // Functor Testing Framework
36      // ------------------------------------------------------------------------
37  
38      protected Object makeFunctor() {
39          return new LeftBoundPredicate<Object>(Constant.TRUE,"xyzzy");
40      }
41  
42      // Tests
43      // ------------------------------------------------------------------------
44  
45      @Test
46      public void testTest() throws Exception {
47          UnaryPredicate<Boolean> p = new LeftBoundPredicate<Boolean>(
48                  new BinaryFunctionBinaryPredicate<Object, Boolean>(RightIdentity.<Object, Boolean> function()), "foo");
49          assertEquals(true,p.test(Boolean.TRUE));
50          assertEquals(false,p.test(Boolean.FALSE));
51      }
52  
53      @Test
54      public void testEquals() throws Exception {
55          UnaryPredicate<Boolean> p = new LeftBoundPredicate<Boolean>(Constant.TRUE,"xyzzy");
56          assertEquals(p,p);
57          assertObjectsAreEqual(p,new LeftBoundPredicate<Boolean>(Constant.TRUE,"xyzzy"));
58          assertObjectsAreNotEqual(p,Constant.TRUE);
59          assertObjectsAreNotEqual(p,new LeftBoundPredicate<Boolean>(Constant.FALSE,"xyzzy"));
60          assertObjectsAreNotEqual(p,new LeftBoundPredicate<Boolean>(Constant.TRUE,"foo"));
61          assertObjectsAreNotEqual(p,new LeftBoundPredicate<Boolean>(Constant.TRUE,null));
62      }
63  
64      @Test
65      public void testAdaptNull() throws Exception {
66          assertNull(LeftBoundPredicate.bind(null,"xyzzy"));
67      }
68  
69      @Test
70      public void testAdapt() throws Exception {
71          assertNotNull(LeftBoundPredicate.bind(Constant.FALSE,"xyzzy"));
72          assertNotNull(LeftBoundPredicate.bind(Constant.FALSE,null));
73      }
74  }