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Struts example source code file (AbstractTagTest.java)

This example Struts source code file (AbstractTagTest.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

action, exception, file, http, io, map, map, request, response, servlet, stringwriter, stringwriter, strutsmockhttpservletrequest, strutsmockhttpservletrequest, strutsmockjspwriter, strutsmockpagecontext, strutsmockservletcontext, strutsmockservletcontext, strutstestcase, util

The Struts AbstractTagTest.java source code

/*
 * $Id: AbstractTagTest.java 670170 2008-06-21 09:40:34Z hermanns $
 *
 * 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.struts2.views.jsp;

import java.io.File;
import java.io.StringWriter;
import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletResponse;
import javax.servlet.jsp.JspWriter;

import org.apache.struts2.ServletActionContext;
import org.apache.struts2.StrutsTestCase;
import org.apache.struts2.TestAction;
import org.apache.struts2.dispatcher.ApplicationMap;
import org.apache.struts2.dispatcher.Dispatcher;
import org.apache.struts2.dispatcher.RequestMap;
import org.apache.struts2.dispatcher.SessionMap;

import com.mockobjects.dynamic.Mock;
import com.opensymphony.xwork2.Action;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.inject.Container;
import com.opensymphony.xwork2.util.ValueStack;
import com.opensymphony.xwork2.util.ValueStackFactory;


/**
 * Base class to extend for unit testing UI Tags.
 *
 */
public abstract class AbstractTagTest extends StrutsTestCase {
    protected Action action;
    protected Map context;
    protected Map session;
    protected ValueStack stack;

    /**
     * contains the buffer that our unit test will write to.  we can later verify this buffer for correctness.
     */
    protected StringWriter writer;
    protected StrutsMockHttpServletRequest request;
    protected StrutsMockPageContext pageContext;
    protected HttpServletResponse response;
    protected StrutsMockServletContext servletContext;
    
    protected Mock mockContainer;

    /**
     * Constructs the action that we're going to test against.  For most UI tests, this default action should be enough.
     * However, simply override getAction to return a custom Action if you need something more sophisticated.
     *
     * @return the Action to be added to the ValueStack as part of the unit test
     */
    public Action getAction() {
        return new TestAction();
    }

    protected void setUp() throws Exception {
        super.setUp();

        /**
         * create our standard mock objects
         */
        action = this.getAction();
        stack = ActionContext.getContext().getValueStack();
        context = stack.getContext();
        stack.push(action);

        request = new StrutsMockHttpServletRequest();
        request.setAttribute(ServletActionContext.STRUTS_VALUESTACK_KEY, stack);
        response = new StrutsMockHttpServletResponse();
        request.setSession(new StrutsMockHttpSession());
        request.setupGetServletPath("/");

        writer = new StringWriter();

        JspWriter jspWriter = new StrutsMockJspWriter(writer);

        servletContext = new StrutsMockServletContext();
        servletContext.setRealPath(new File("nosuchfile.properties").getAbsolutePath());
        servletContext.setServletInfo("Resin");

        pageContext = new StrutsMockPageContext();
        pageContext.setRequest(request);
        pageContext.setResponse(response);
        pageContext.setJspWriter(jspWriter);
        pageContext.setServletContext(servletContext);

        mockContainer = new Mock(Container.class);
        Dispatcher du = new Dispatcher(pageContext.getServletContext(), new HashMap());
        du.init();
        Dispatcher.setInstance(du);
        du.setConfigurationManager(configurationManager);
        session = new SessionMap(request);
        Map<String, Object> extraContext = du.createContextMap(new RequestMap(request),
                request.getParameterMap(),
                session,
                new ApplicationMap(pageContext.getServletContext()),
                request,
                response,
                pageContext.getServletContext());
        // let's not set the locale -- there is a test that checks if Dispatcher actually picks this up...
        // ... but generally we want to just use no locale (let it stay system default)
        extraContext.remove(ActionContext.LOCALE);
        stack.getContext().putAll(extraContext);

        context.put(ServletActionContext.HTTP_REQUEST, request);
        context.put(ServletActionContext.HTTP_RESPONSE, response);
        context.put(ServletActionContext.SERVLET_CONTEXT, servletContext);

        ActionContext.setContext(new ActionContext(context));
    }

    protected void tearDown() throws Exception {
        super.tearDown();
        pageContext.verify();
        request.verify();
        action = null;
        context = null;
        session = null;
        stack = null;
        writer = null;
        request = null;
        pageContext = null;
        response = null;
        servletContext = null;
        mockContainer = null;
    }
}

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