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;
18  
19  import static org.junit.Assert.assertEquals;
20  import static org.junit.Assert.assertSame;
21  
22  import org.apache.commons.functor.BaseFunctorTest;
23  import org.apache.commons.functor.BinaryProcedure;
24  import org.apache.commons.functor.Procedure;
25  import org.apache.commons.functor.UnaryProcedure;
26  import org.junit.Test;
27  
28  /**
29   * @version $Revision: 1171255 $ $Date: 2011-09-15 22:27:39 +0200 (Thu, 15 Sep 2011) $
30   * @author Rodney Waldhoff
31   */
32  public class TestNoOp extends BaseFunctorTest {
33  
34      // Functor Testing Framework
35      // ------------------------------------------------------------------------
36  
37      protected Object makeFunctor() {
38          return new NoOp();
39      }
40  
41      // Tests
42      // ------------------------------------------------------------------------
43  
44      @Test
45      public void testRun() throws Exception {
46          NoOp p = new NoOp();
47          p.run();
48          p.run(null);
49          p.run(null,null);
50          p.run("foo");
51          p.run("foo",null);
52          p.run(null,"bar");
53          p.run("foo","bar");
54      }
55  
56      @Test
57      public void testEquals() throws Exception {
58          NoOp p = new NoOp();
59          assertEquals(p,p);
60          assertObjectsAreEqual(p,new NoOp());
61          assertObjectsAreEqual(p,NoOp.instance());
62          assertObjectsAreNotEqual(p,new Procedure() { public void run() { } });
63          assertObjectsAreNotEqual(p,new UnaryProcedure<Object>() { public void run(Object a) { } });
64          assertObjectsAreNotEqual(p,new BinaryProcedure<Object, Object>() { public void run(Object a, Object b) { } });
65      }
66  
67      @Test
68      public void testConstant() throws Exception {
69          assertEquals(NoOp.instance(),NoOp.instance());
70          assertSame(NoOp.instance(),NoOp.instance());
71      }
72  }