Struts example source code file (ChainingInterceptorTest.java)

This example Struts source code file (ChainingInterceptorTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Struts tags/keywords

actionchainresult, actioninvocation, arraylist, chaininginterceptor, collection, date, exception, exception, simpleaction, simpleaction, testbean, testbean, testbeanaction, testbeanaction, util

The Struts ChainingInterceptorTest.java source code

/*
 * Copyright 2002-2006,2009 The Apache Software Foundation.
 * 
 * Licensed 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 com.opensymphony.xwork2.interceptor;

import com.mockobjects.dynamic.Mock;
import com.opensymphony.xwork2.*;
import com.opensymphony.xwork2.util.ValueStack;

import java.util.*;


/**
 * Unit test for {@link ChainingInterceptor}.
 *
 * @author Jason Carreira
 */
public class ChainingInterceptorTest extends XWorkTestCase {

    ActionInvocation invocation;
    ChainingInterceptor interceptor;
    Mock mockInvocation;
    ValueStack stack;


    public void testActionErrorsCanBeAddedAfterChain() throws Exception {
        SimpleAction action1 = new SimpleAction();
        SimpleAction action2 = new SimpleAction();
        action1.addActionError("foo");
        mockInvocation.matchAndReturn("getAction", action2);
        stack.push(action1);
        stack.push(action2);
        interceptor.setCopyErrors("true");
        interceptor.setCopyMessages("true");

        interceptor.intercept(invocation);

        assertEquals(action1.getActionErrors(), action2.getActionErrors());
        action2.addActionError("bar");
        assertEquals(1, action1.getActionErrors().size());
        assertEquals(2, action2.getActionErrors().size());
        assertTrue(action2.getActionErrors().contains("bar"));
    }

    public void testActionErrorsNotCopiedAfterChain() throws Exception {
        SimpleAction action1 = new SimpleAction();
        SimpleAction action2 = new SimpleAction();
        action1.addActionError("foo");
        mockInvocation.matchAndReturn("getAction", action2);
        stack.push(action1);
        stack.push(action2);

        interceptor.intercept(invocation);

        assertEquals(Collections.EMPTY_LIST, action2.getActionErrors());
        action2.addActionError("bar");
        assertEquals(1, action1.getActionErrors().size());
        assertEquals(1, action2.getActionErrors().size());
        assertTrue(action2.getActionErrors().contains("bar"));
        assertFalse(action2.getActionErrors().contains("foo"));
    }

    public void testPropertiesChained() throws Exception {
        TestBean bean = new TestBean();
        TestBeanAction action = new TestBeanAction();
        mockInvocation.matchAndReturn("getAction", action);
        bean.setBirth(new Date());
        bean.setName("foo");
        bean.setCount(1);
        stack.push(bean);
        stack.push(action);
        interceptor.setCopyErrors("true");
        interceptor.setCopyMessages("true");

        interceptor.intercept(invocation);

        assertEquals(bean.getBirth(), action.getBirth());
        assertEquals(bean.getName(), action.getName());
        assertEquals(bean.getCount(), action.getCount());
    }

    public void testExcludesPropertiesChained() throws Exception {
        TestBean bean = new TestBean();
        TestBeanAction action = new TestBeanAction();
        mockInvocation.matchAndReturn("getAction", action);
        bean.setBirth(new Date());
        bean.setName("foo");
        bean.setCount(1);
        stack.push(bean);
        stack.push(action);
        interceptor.setCopyErrors("true");
        interceptor.setCopyMessages("true");

        Collection excludes = new ArrayList();
        excludes.add("count");
        interceptor.setExcludes(excludes);

        interceptor.intercept(invocation);

        assertEquals(bean.getBirth(), action.getBirth());
        assertEquals(bean.getName(), action.getName());
        assertEquals(0, action.getCount());
        assertEquals(excludes, interceptor.getExcludes());
    }

    public void testTwoExcludesPropertiesChained() throws Exception {
        TestBean bean = new TestBean();
        TestBeanAction action = new TestBeanAction();
        mockInvocation.matchAndReturn("getAction", action);
        bean.setBirth(new Date());
        bean.setName("foo");
        bean.setCount(1);
        stack.push(bean);
        stack.push(action);

        Collection excludes = new ArrayList();
        excludes.add("name");
        excludes.add("count");
        interceptor.setExcludes(excludes);
        interceptor.intercept(invocation);
        assertEquals(bean.getBirth(), action.getBirth());
        assertEquals(null, action.getName());
        assertEquals(0, action.getCount());
        assertEquals(excludes, interceptor.getExcludes());
    }

    public void testNullCompoundRootElementAllowsProcessToContinue() throws Exception {
        // we should not get NPE, but instead get a warning logged.
        stack.push(null);
        stack.push(null);
        stack.push(null);
        interceptor.intercept(invocation);
    }


    @Override
    protected void setUp() throws Exception {
        super.setUp();
        stack = ActionContext.getContext().getValueStack();
        mockInvocation = new Mock(ActionInvocation.class);
        mockInvocation.expectAndReturn("getStack", stack);
        mockInvocation.expectAndReturn("invoke", Action.SUCCESS);
        mockInvocation.expectAndReturn("getInvocationContext", new ActionContext(new HashMap()));
        mockInvocation.expectAndReturn("getResult", new ActionChainResult());
        invocation = (ActionInvocation) mockInvocation.proxy();
        interceptor = new ChainingInterceptor();
        container.inject(interceptor);
    }


    private class TestBeanAction extends TestBean implements Action {
        public String execute() throws Exception {
            return SUCCESS;
        }
    }
}