001 /*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017 package org.apache.commons.functor.adapter;
018
019 import static org.junit.Assert.*;
020
021 import org.apache.commons.functor.BaseFunctorTest;
022 import org.apache.commons.functor.BinaryFunction;
023 import org.apache.commons.functor.core.Constant;
024 import org.junit.Test;
025
026 /**
027 * @version $Revision: 1171255 $ $Date: 2011-09-15 22:27:39 +0200 (Thu, 15 Sep 2011) $
028 * @author Rodney Waldhoff
029 */
030 public class TestBinaryPredicateBinaryFunction extends BaseFunctorTest {
031
032 // Functor Testing Framework
033 // ------------------------------------------------------------------------
034
035 protected Object makeFunctor() {
036 return new BinaryPredicateBinaryFunction<Object, Object>(Constant.TRUE);
037 }
038
039 // Tests
040 // ------------------------------------------------------------------------
041
042 @Test
043 public void testTestWhenTrue() throws Exception {
044 BinaryFunction<Object, Object, Boolean> f = new BinaryPredicateBinaryFunction<Object, Object>(Constant.TRUE);
045 assertTrue(f.evaluate(null,null));
046 }
047
048 @Test
049 public void testTestWhenFalse() throws Exception {
050 BinaryFunction<Object, Object, Boolean> f = new BinaryPredicateBinaryFunction<Object, Object>(Constant.FALSE);
051 assertFalse(f.evaluate(null,null));
052 }
053
054 @Test
055 public void testEquals() throws Exception {
056 BinaryFunction<Object, Object, Boolean> f = new BinaryPredicateBinaryFunction<Object, Object>(Constant.TRUE);
057 assertEquals(f,f);
058 assertObjectsAreEqual(f,new BinaryPredicateBinaryFunction<Object, Object>(Constant.TRUE));
059 assertObjectsAreNotEqual(f,Constant.of("x"));
060 assertObjectsAreNotEqual(f,new BinaryPredicateBinaryFunction<Object, Object>(Constant.FALSE));
061 }
062
063 @Test
064 public void testAdaptNull() throws Exception {
065 assertNull(BinaryFunctionBinaryPredicate.adapt(null));
066 }
067
068 @Test
069 public void testAdapt() throws Exception {
070 assertNotNull(BinaryPredicateBinaryFunction.adapt(Constant.TRUE));
071 }
072 }