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 */
017package org.apache.commons.functor.adapter;
018
019import static org.junit.Assert.assertEquals;
020import static org.junit.Assert.assertFalse;
021import static org.junit.Assert.assertNotNull;
022import static org.junit.Assert.assertNull;
023import static org.junit.Assert.assertTrue;
024
025import org.apache.commons.functor.BaseFunctorTest;
026import org.apache.commons.functor.NullaryPredicate;
027import org.apache.commons.functor.core.Constant;
028import org.apache.commons.functor.core.Identity;
029import org.junit.Test;
030
031/**
032 * @version $Revision: 1365377 $ $Date: 2012-07-24 21:59:23 -0300 (Tue, 24 Jul 2012) $
033 */
034public class TestBoundNullaryPredicate extends BaseFunctorTest {
035
036    // Functor Testing Framework
037    // ------------------------------------------------------------------------
038
039    @Override
040    protected Object makeFunctor() {
041        return new BoundNullaryPredicate(Constant.TRUE,"xyzzy");
042    }
043
044    // Tests
045    // ------------------------------------------------------------------------
046
047    @Test
048    public void testTest() throws Exception {
049        {
050            NullaryPredicate p = new BoundNullaryPredicate(new FunctionPredicate<Boolean>(Identity.<Boolean>instance()),Boolean.TRUE);
051            assertTrue(p.test());
052        }
053        {
054            NullaryPredicate p = new BoundNullaryPredicate(new FunctionPredicate<Boolean>(Identity.<Boolean>instance()),Boolean.FALSE);
055            assertFalse(p.test());
056        }
057    }
058
059    @Test
060    public void testEquals() throws Exception {
061        NullaryPredicate f = new BoundNullaryPredicate(Constant.TRUE,"xyzzy");
062        assertEquals(f,f);
063        assertObjectsAreEqual(f,new BoundNullaryPredicate(Constant.TRUE,"xyzzy"));
064        assertObjectsAreNotEqual(f,Constant.TRUE);
065        assertObjectsAreNotEqual(f,new BoundNullaryPredicate(Constant.TRUE,"foo"));
066        assertObjectsAreNotEqual(f,new BoundNullaryPredicate(Constant.FALSE,"xyzzy"));
067        assertObjectsAreNotEqual(f,new BoundNullaryPredicate(Constant.TRUE,null));
068        assertObjectsAreEqual(new BoundNullaryPredicate(Constant.TRUE,null),new BoundNullaryPredicate(Constant.TRUE,null));
069        assertTrue(!f.equals(null));
070    }
071
072    @Test
073    public void testAdaptNull() throws Exception {
074        assertNull(BoundNullaryPredicate.bind(null,"xyzzy"));
075    }
076
077    @Test
078    public void testAdapt() throws Exception {
079        assertNotNull(BoundNullaryPredicate.bind(Constant.TRUE,"xyzzy"));
080        assertNotNull(BoundNullaryPredicate.bind(Constant.TRUE,null));
081    }
082}