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
018package org.apache.commons.proxy2.interceptor;
019
020import static org.junit.Assert.assertEquals;
021
022import org.apache.commons.proxy2.Interceptor;
023import org.apache.commons.proxy2.Invocation;
024import org.apache.commons.proxy2.provider.ObjectProviderUtils;
025import org.apache.commons.proxy2.util.AbstractTestCase;
026import org.apache.commons.proxy2.util.Echo;
027import org.junit.Test;
028
029public class InterceptorUtilsTest extends AbstractTestCase
030{
031    @Test
032    public void testConstant() throws Throwable
033    {
034        Interceptor interceptor = InterceptorUtils.constant("Hello!");
035        Invocation invocation = mockInvocation(Echo.class, "echoBack", String.class).withArguments("World!").build();
036        assertEquals("Hello!", interceptor.intercept(invocation));
037    }
038
039    @Test
040    public void testProvider() throws Throwable
041    {
042        Interceptor interceptor = InterceptorUtils.provider(ObjectProviderUtils.constant("Foo!"));
043        Invocation invocation = mockInvocation(Echo.class, "echoBack", String.class).withArguments("World!").build();
044        assertEquals("Foo!", interceptor.intercept(invocation));
045    }
046
047    @Test(expected = RuntimeException.class)
048    public void testThrowingExceptionObject() throws Throwable
049    {
050        Interceptor interceptor = InterceptorUtils.throwing(new RuntimeException("Oops!"));
051        Invocation invocation = mockInvocation(Echo.class, "echoBack", String.class).withArguments("World!").build();
052        interceptor.intercept(invocation);
053    }
054
055    @Test(expected = RuntimeException.class)
056    public void testThrowingProvidedException() throws Throwable
057    {
058        Interceptor interceptor = InterceptorUtils
059                .throwing(ObjectProviderUtils.constant(new RuntimeException("Oops!")));
060        Invocation invocation = mockInvocation(Echo.class, "echoBack", String.class).withArguments("World!").build();
061        interceptor.intercept(invocation);
062    }
063
064}