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.assertTrue;
20 import static org.junit.Assert.fail;
21
22 import org.apache.commons.functor.BaseFunctorTest;
23 import org.apache.commons.functor.BinaryPredicate;
24 import org.apache.commons.functor.Predicate;
25 import org.apache.commons.functor.UnaryPredicate;
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 TestOffset extends BaseFunctorTest {
33
34 // Functor Testing Framework
35 // ------------------------------------------------------------------------
36
37 protected Object makeFunctor() {
38 return new Offset(3);
39 }
40
41 // Lifecycle
42 // ------------------------------------------------------------------------
43
44 // Tests
45 // ------------------------------------------------------------------------
46
47 @Test
48 public void testZero() throws Exception {
49 Predicate p = new Offset(0);
50 assertTrue( p.test());
51 assertTrue( p.test());
52 assertTrue( p.test());
53 }
54
55 @Test
56 public void testBadArgs() throws Exception {
57 try {
58 new Offset(-1);
59 fail("Expected IllegalArgumentException");
60 } catch(IllegalArgumentException e) {
61 // expected
62 }
63 }
64
65 @Test
66 public void testTestNullary() throws Exception {
67 Predicate p = new Offset(3);
68 assertTrue(!p.test());
69 assertTrue(!p.test());
70 assertTrue(!p.test());
71 assertTrue(p.test());
72 }
73
74 @Test
75 public void testTestUnary() throws Exception {
76 UnaryPredicate<Object> p = new Offset(3);
77 assertTrue(!p.test(null));
78 assertTrue(!p.test(null));
79 assertTrue(!p.test(null));
80 assertTrue(p.test(null));
81 }
82
83 @Test
84 public void testTestBinary() throws Exception {
85 BinaryPredicate<Object, Object> p = new Offset(3);
86 assertTrue(!p.test(null,null));
87 assertTrue(!p.test(null,null));
88 assertTrue(!p.test(null,null));
89 assertTrue(p.test(null,null));
90 }
91 }