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    
018    package org.apache.commons.proxy.invoker;
019    import junit.framework.TestCase;
020    import org.apache.commons.proxy.factory.javassist.JavassistProxyFactory;
021    import org.apache.commons.proxy.util.Echo;
022    
023    import java.lang.reflect.InvocationHandler;
024    import java.lang.reflect.Method;
025    
026    public class TestInvocationHandlerAdapter extends TestCase
027    {
028        public void testMethodInvocation() throws Exception
029        {
030            InvocationHandlerTester tester = new InvocationHandlerTester();
031            final Echo echo = ( Echo ) new JavassistProxyFactory().createInvokerProxy( new InvocationHandlerAdapter( tester ), new Class[] { Echo.class } );
032            echo.echoBack( "hello" );
033            assertEquals( Echo.class.getMethod( "echoBack", new Class[] { String.class } ), tester.method );
034            assertSame( echo, tester.proxy );
035            assertNotNull( tester.arguments );
036            assertEquals( 1, tester.arguments.length );
037            assertEquals( "hello", tester.arguments[0] );
038        }
039    
040        private class InvocationHandlerTester implements InvocationHandler
041        {
042            private Object proxy;
043            private Method method;
044            private Object[] arguments;
045    
046            public Object invoke( Object proxy, Method method, Object[] args ) throws Throwable
047            {
048                this.proxy = proxy;
049                this.method = method;
050                this.arguments = args;
051                return null;
052            }
053        }
054    }