| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.commons.functor.core.composite; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNull; |
| import static org.junit.Assert.assertTrue; |
| |
| import org.apache.commons.functor.BaseFunctorTest; |
| import org.apache.commons.functor.BinaryFunction; |
| import org.apache.commons.functor.core.Constant; |
| import org.apache.commons.functor.core.Identity; |
| import org.apache.commons.functor.core.LeftIdentity; |
| import org.apache.commons.functor.core.RightIdentity; |
| import org.junit.Test; |
| |
| /** |
| * @version $Revision: 1365329 $ $Date: 2012-07-24 19:34:23 -0300 (Tue, 24 Jul 2012) $ |
| */ |
| public class TestCompositeBinaryFunction extends BaseFunctorTest { |
| |
| // Functor Testing Framework |
| // ------------------------------------------------------------------------ |
| |
| @Override |
| protected Object makeFunctor() { |
| return new CompositeBinaryFunction<Object, Object, Object>( |
| RightIdentity.FUNCTION, |
| Constant.of("left"), |
| Identity.instance()); |
| } |
| |
| // Tests |
| // ------------------------------------------------------------------------ |
| |
| @Test |
| public void testEvaluate() throws Exception { |
| BinaryFunction<Object, Object, Object> f = new CompositeBinaryFunction<Object, Object, Object>( |
| RightIdentity.FUNCTION, |
| Constant.of("K"), |
| Identity.instance()); |
| assertEquals("right",f.evaluate("left","right")); |
| assertNull("right",f.evaluate("left",null)); |
| assertEquals("right",f.evaluate(null,"right")); |
| } |
| |
| @Test |
| public void testEquals() throws Exception { |
| BinaryFunction<Object, Object, Object> f = new CompositeBinaryFunction<Object, Object, Object>( |
| LeftIdentity.FUNCTION, |
| Constant.of("left"), |
| Constant.of("right")); |
| assertEquals(f,f); |
| assertObjectsAreEqual(f,new CompositeBinaryFunction<Object, Object, Object>( |
| LeftIdentity.FUNCTION, |
| Constant.of("left"), |
| Constant.of("right"))); |
| assertObjectsAreNotEqual(f,new CompositeBinaryFunction<Object, Object, Object>( |
| RightIdentity.FUNCTION, |
| Constant.of("left"), |
| Constant.of("right"))); |
| assertObjectsAreNotEqual(f,new CompositeBinaryFunction<Object, Object, Object>( |
| LeftIdentity.FUNCTION, |
| Identity.instance(), |
| Constant.of("right"))); |
| assertObjectsAreNotEqual(f,new CompositeBinaryFunction<Object, Object, Object>( |
| LeftIdentity.FUNCTION, |
| Constant.of("left"), |
| Identity.instance())); |
| assertTrue(!((CompositeBinaryFunction<?,?,?>)f).equals(null)); |
| } |
| |
| } |