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.assertNotNull;
021import static org.junit.Assert.assertNull;
022
023import org.apache.commons.functor.BaseFunctorTest;
024import org.apache.commons.functor.BinaryFunction;
025import org.apache.commons.functor.BinaryProcedure;
026import org.apache.commons.functor.core.Constant;
027import org.apache.commons.functor.core.NoOp;
028import org.junit.Test;
029
030/**
031 * @version $Revision: 1365377 $ $Date: 2012-07-25 02:59:23 +0200 (Mi, 25 Jul 2012) $
032 */
033public class TestBinaryProcedureBinaryFunction extends BaseFunctorTest {
034
035    // Functor Testing Framework
036    // ------------------------------------------------------------------------
037
038    @Override
039    protected Object makeFunctor() {
040        return new BinaryProcedureBinaryFunction<Object, Object, Object>(NoOp.instance());
041    }
042
043    // Tests
044    // ------------------------------------------------------------------------
045
046    @Test
047    public void testEvaluate() throws Exception {
048        BinaryFunction<Object, Object, Object> f = new BinaryProcedureBinaryFunction<Object, Object, Object>(NoOp.instance());
049        assertNull(f.evaluate(null,null));
050    }
051
052    @Test
053    public void testEquals() throws Exception {
054        BinaryFunction<Object, Object, Object> f = new BinaryProcedureBinaryFunction<Object, Object, Object>(new NoOp());
055        assertEquals(f,f);
056        assertObjectsAreEqual(f,new BinaryProcedureBinaryFunction<Object, Object, Object>(new NoOp()));
057        assertObjectsAreNotEqual(f,Constant.of("x"));
058        assertObjectsAreNotEqual(f, new BinaryProcedureBinaryFunction<Object, Object, Object>(
059                new BinaryProcedure<Object, Object>() {
060                    public void run(Object a, Object b) {
061                    }
062                }));
063        assertObjectsAreNotEqual(f,Constant.of(null));
064    }
065
066    @Test
067    public void testAdaptNull() throws Exception {
068        assertNull(BinaryProcedureBinaryFunction.adapt(null));
069    }
070
071    @Test
072    public void testAdapt() throws Exception {
073        assertNotNull(BinaryProcedureBinaryFunction.adapt(NoOp.instance()));
074    }
075}