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.*;
020
021import org.apache.commons.functor.BaseFunctorTest;
022import org.apache.commons.functor.Function;
023import org.apache.commons.functor.core.Constant;
024import org.apache.commons.functor.core.IsNotSame;
025import org.apache.commons.functor.core.IsSame;
026import org.junit.Test;
027
028/**
029 * @version $Revision: 1345136 $ $Date: 2012-06-01 09:47:06 -0300 (Fri, 01 Jun 2012) $
030 */
031public class TestBinaryFunctionFunction extends BaseFunctorTest {
032
033    // Functor Testing Framework
034    // ------------------------------------------------------------------------
035
036    @Override
037    protected Object makeFunctor() {
038        return new BinaryFunctionFunction<Object, Object>(BinaryPredicateBinaryFunction.adapt(IsSame.INSTANCE));
039    }
040
041    // Tests
042    // ------------------------------------------------------------------------
043
044    @Test
045    public void testTestWhenTrue() throws Exception {
046        Function<Object, Boolean> f = new BinaryFunctionFunction<Object, Boolean>(BinaryPredicateBinaryFunction.adapt(IsSame.INSTANCE));
047        assertEquals(Boolean.TRUE, f.evaluate(null));
048    }
049
050    @Test
051    public void testTestWhenFalse() throws Exception {
052        Function<Object, Boolean> f = new BinaryFunctionFunction<Object, Boolean>(BinaryPredicateBinaryFunction.adapt(IsNotSame.INSTANCE));
053        assertEquals(Boolean.FALSE, f.evaluate(null));
054    }
055
056    @Test
057    public void testEquals() throws Exception {
058        Function<Object, Boolean> f = new BinaryFunctionFunction<Object, Boolean>(BinaryPredicateBinaryFunction.adapt(IsSame.INSTANCE));
059        assertEquals(f, f);
060        assertObjectsAreEqual(f, new BinaryFunctionFunction<Object, Boolean>(BinaryPredicateBinaryFunction.adapt(IsSame.INSTANCE)));
061        assertObjectsAreNotEqual(f, Constant.truePredicate());
062        assertObjectsAreNotEqual(f, new BinaryFunctionFunction<Object, Boolean>(BinaryPredicateBinaryFunction.adapt(IsNotSame.INSTANCE)));
063    }
064
065    @Test
066    public void testAdaptNull() throws Exception {
067        assertNull(BinaryFunctionFunction.adapt(null));
068    }
069
070    @Test
071    public void testAdapt() throws Exception {
072        assertNotNull(BinaryFunctionFunction.adapt(Constant.TRUE));
073    }
074}