How to test Struts2 action in Junit 4 mode?

Question

There is a struts2-junit plugin for testing Struts2 actions, but it seems that the tests should be written in JUnit 3 style, that is, I cannot use @BeforeClass, @Test annotations and cannot use BDD test names such as “shouldDoThisAndThat ( ) ". Is there a way to combine struts2-junit-plugin and 4-style JUnit tests?

Answer 1

You can try:

http://glindholm.wordpress.com/2008/06/30/unit-testing-struts-2-actions/

I found this very useful when testing Struts2 actions. It uses Mockrunner to simulate working in a servlet container, so you can develop your tests in any way, including using JUnit 4.

Answer 2

I had the same problem, here's how I solved it, its a pretty simple base class.

In my case, I use hibernate, so leave the contents of the session / transaction if you are not using it. This will allow you to use all the struts mock objects that I have found convenient. A simple test case follows.

I still need to figure out how to inject resource packages (i18n lines) ... I will add this to the base class.

package com.accelarad.unittest; import org.apache.struts2.StrutsTestCase; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.junit.AfterClass; import org.junit.Before; import org.junit.BeforeClass; import org.junit.runner.RunWith; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.ApplicationContext; import org.springframework.context.ApplicationContextAware; import org.springframework.orm.hibernate3.SessionFactoryUtils; import org.springframework.orm.hibernate3.SessionHolder; import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; import org.springframework.transaction.support.TransactionSynchronizationManager; import org.springframework.web.context.WebApplicationContext; /** * Bring Struts JUnit3 into the JUnit4 world * * @author kcostilow * */ @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration( { "classpath:spring-datasource-unittest.xml", "classpath:spring-test-hibernate.xml", "classpath:spring-context.xml", "classpath:spring-security.xml", "classpath:spring-server.xml" } ) public abstract class AbstractSpringStruts2JUnit4 extends StrutsTestCase implements ApplicationContextAware { protected ApplicationContext applicationContext; @Autowired protected SessionFactory sessionFactory; // implements ApplicationContextAware public void setApplicationContext(ApplicationContext applicationContext) { this.applicationContext = applicationContext; } @BeforeClass public static void initialize() { // in my case, I create a mock JNDI here, // including a mailSession using a Wiser mock SMTP server } @Before public void setUp() throws Exception { super.setUp(); // use JUnit3 setUp chain. In this case setupBeforeInitDispatcher() will be called if (! TransactionSynchronizationManager.hasResource(sessionFactory)) { Session session = SessionFactoryUtils.getSession(sessionFactory, true); // first @Before only TransactionSynchronizationManager.bindResource(sessionFactory, new SessionHolder(session)); } } @Override protected void setupBeforeInitDispatcher() throws Exception { servletContext.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, applicationContext); // inject hibernate sessionFactory into Transaction Management, simulating OpenSessionInView } @AfterClass public static void shutdown() { // in my case, I shutdown the mock mail server here } } 

Test Case Example:

 public class MyActionTest extends AbstractSpringStruts2JUnit4 { @Test public void testOneStrutsAction() throws Exception { ActionProxy proxy = super.getActionProxy("/packageName/actionName"); TestCase.assertEquals("actionName result", "success", proxy.execute()); MyAction myAction = (MyAction ) proxy.getAction(); TestCase.assertNotNull(myAction.getSomething()); } } 

You can take it from there, I think.

Answer 3

For others who land here to learn how to test struts2 actions with Junit, here is sample code using Struts2.3.12 and Junit 4

 public class TestIoOptimizationAction extends StrutsJUnit4TestCase<IoOptimizationAction> { @Test public void login() throws Exception { request.setParameter("email", " [e-mail] "); request.setParameter("password", "22"); ActionProxy proxy = getActionProxy("login"); Map<String, Object> sessionMap = new HashMap<String, Object>(); proxy.getInvocation().getInvocationContext().setSession(sessionMap); String result = proxy.execute(); // String result = executeAction("/login"); assertEquals("success", result); System.out.println(response.getContentAsString()); } } 

I had to insert the session map separately because I use getActionProxy (), and here is the reason

Answer 4

Your test class should extend StrutsSpringJUnit4TestCase.

Answer 5

I stole the answers of kcostilow and coding_idiot a bit and created an abstract class with StrutsJUnit4TestCase :

 @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration( { "classpath:spring-datasource-unittest.xml", "classpath:spring-test-hibernate.xml", "classpath:spring-context.xml", "classpath:spring-security.xml", "classpath:spring-server.xml" } ) @Transactional @TransactionConfiguration(transactionManager = "dataSourceTransactionManager") public abstract class AbstractSpringStruts2JUnit4<T extends ActionSupport> extends StrutsJUnit4TestCase<T> { @Autowired @Qualifier("dataSource") public void setDataSource(DataSource dataSource) { this.dataSource= dataSource; } @Before public void onSetUp() throws Exception { super.setUp(); setupAction(); } protected abstract void setupAction(); } 

Then the class is expanded to create a test:

 public class SomeActionIntegrationTest extends AbstractSpringStruts2JUnit4<SomeAction> { private SomeAction someAction; // SomeAction must extend ActionSupport. @Override protected void setupAction() { ActionProxy proxy = super.getActionProxy("/someAction"); // You might have* to add ".do" to the end of the URI. So, super.getActionProxy("/someAction.do") was the only way I was able to get the proxy. someAction = (ActionSupport) proxy.getAction(); assertNotNull(someAction); } @Test public void testExecute() throws Exception { String result = someAction.execute(); assertEquals("input", result); } }