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The RAP Widget Toolkit Testfixture
/*******************************************************************************
* Copyright (c) 2014, 2015 EclipseSource and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* EclipseSource - initial API and implementation
******************************************************************************/
package org.eclipse.rap.rwt.testfixture;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.eclipse.rap.json.JsonArray;
import org.eclipse.rap.json.JsonObject;
import org.eclipse.rap.rwt.RWT;
import org.eclipse.rap.rwt.application.Application;
import org.eclipse.rap.rwt.application.ApplicationConfiguration;
import org.eclipse.rap.rwt.client.Client;
import org.eclipse.rap.rwt.client.WebClient;
import org.eclipse.rap.rwt.internal.SingletonManager;
import org.eclipse.rap.rwt.internal.application.ApplicationContextImpl;
import org.eclipse.rap.rwt.internal.client.ClientSelector;
import org.eclipse.rap.rwt.internal.lifecycle.CurrentPhase;
import org.eclipse.rap.rwt.internal.lifecycle.PhaseId;
import org.eclipse.rap.rwt.internal.protocol.ClientMessage;
import org.eclipse.rap.rwt.internal.protocol.ProtocolUtil;
import org.eclipse.rap.rwt.internal.service.ContextProvider;
import org.eclipse.rap.rwt.internal.service.ServiceContext;
import org.eclipse.rap.rwt.internal.service.ServiceStore;
import org.eclipse.rap.rwt.internal.service.UISessionImpl;
import org.eclipse.rap.rwt.internal.textsize.MeasurementUtil;
import org.eclipse.rap.rwt.internal.theme.ThemeManager;
import org.eclipse.rap.rwt.internal.theme.ThemeUtil;
import org.eclipse.rap.rwt.internal.util.HTTP;
import org.eclipse.rap.rwt.remote.Connection;
import org.eclipse.rap.rwt.service.ApplicationContext;
import org.eclipse.rap.rwt.service.ResourceManager;
import org.eclipse.rap.rwt.service.UISession;
import org.eclipse.rap.rwt.testfixture.internal.TestRequest;
import org.eclipse.rap.rwt.testfixture.internal.TestResourceManager;
import org.eclipse.rap.rwt.testfixture.internal.TestResponse;
import org.eclipse.rap.rwt.testfixture.internal.TestServletContext;
import org.eclipse.rap.rwt.testfixture.internal.TestHttpSession;
import org.eclipse.rap.rwt.testfixture.internal.engine.ThemeManagerHelper;
import org.junit.rules.TestRule;
import org.junit.runner.Description;
import org.junit.runners.model.Statement;
/**
* JUnit rule that sets up a RAP context including UISession and ApplicationContext for test cases.
* Every test method will run in an isolated test context. The running thread will be marked as
* UIThread for the execution of a test method.
*
* To use this rule, add the following line to a test case.
*
*
*
* @Rule
* public TestContext context = new TestContext();
*
*
* @since 3.0
*/
@SuppressWarnings( "deprecation" )
public class TestContext implements TestRule {
private ApplicationContextImpl applicationContext;
private UISessionImpl uiSession;
public Statement apply( final Statement base, final Description description ) {
return new Statement() {
@Override
public void evaluate() throws Throwable {
try {
setup( description );
base.evaluate();
} finally {
tearDown();
}
}
};
}
/**
* Returns the UISession that is part of this test context. Within the running thread, this is
* equivalent to RWT.getUISession().
*
* @return the UISession of this test context
*/
public UISession getUISession() {
return uiSession;
}
/**
* Returns the ApplicationContext that is part of this test context. Within the running thread,
* this is equivalent to RWT.getApplicationContext().
*
* @return the ApplicationContext of this test context
*/
public ApplicationContext getApplicationContext() {
return applicationContext;
}
/**
* Replaces the client implementation of the current UISession. Can be used to return mocked
* ClientServices. Example:
*
* context.replaceClient( new Client() {
* public <T extends ClientService> T getService( Class<T> type ) {
* return mockedClientService;
* }
* } );
*
* @param client a new Client implementation
*/
public void replaceClient( Client client ) {
uiSession.setAttribute( ClientSelector.SELECTED_CLIENT, client );
}
/**
* Replaces the connection of the current UISession. Can be used to return mocked RemoteObjects
* for a given type. Example:
*
* context.replaceConnection( new Connection() {
* public RemoteObject createRemoteObject( String remoteType ) {
* return mockedRemoteObject;
* }
* } );
*
* @param connection a new Connection implementation
*/
public void replaceConnection( Connection connection ) {
uiSession.setConnection( connection );
}
private void setup( Description description ) {
ApplicationConfiguration config = createApplicationConfiguration();
applicationContext = createApplicationContext( config );
uiSession = new UISessionImpl( applicationContext, new TestHttpSession() );
ContextProvider.setContext( createServiceContext( applicationContext, uiSession ) );
SingletonManager.install( applicationContext );
SingletonManager.install( uiSession );
MeasurementUtil.installMeasurementOperator( uiSession );
ThemeUtil.setCurrentThemeId( uiSession, RWT.DEFAULT_THEME_ID );
uiSession.setAttribute( ClientSelector.SELECTED_CLIENT, new WebClient() );
ProtocolUtil.setClientMessage( createMessage() );
CurrentPhase.set( PhaseId.PROCESS_ACTION );
}
private void tearDown() {
ThemeManagerHelper.resetThemeManagerIfNeeded();
ContextProvider.disposeContext();
applicationContext.deactivate();
applicationContext.removeFromServletContext();
applicationContext = null;
uiSession = null;
}
private static ApplicationConfiguration createApplicationConfiguration() {
ContextProvider.disposeContext();
return new ApplicationConfiguration() {
public void configure( Application application ) {
}
};
}
private static ApplicationContextImpl createApplicationContext( ApplicationConfiguration config )
{
TestServletContext servletContext = new TestServletContext();
ApplicationContextImpl appContext = new ApplicationContextImpl( config, servletContext ) {
@Override
protected ThemeManager createThemeManager() {
return ThemeManagerHelper.ensureThemeManager();
}
@Override
protected ResourceManager createResourceManager() {
return new TestResourceManager();
}
};
appContext.attachToServletContext();
appContext.activate();
return appContext;
}
private static ServiceContext createServiceContext( ApplicationContextImpl applicationContext,
UISession uiSession )
{
HttpServletRequest request = createRequest( uiSession.getHttpSession() );
HttpServletResponse response = new TestResponse();
ServiceContext serviceContext = new ServiceContext( request, response, applicationContext );
serviceContext.setServiceStore( new ServiceStore() );
serviceContext.setUISession( uiSession );
return serviceContext;
}
private static HttpServletRequest createRequest( HttpSession httpSession ) {
TestRequest request = new TestRequest();
request.setContentType( HTTP.CONTENT_TYPE_JSON );
request.setMethod( HTTP.METHOD_POST );
request.setSession( httpSession );
request.setBody( createMessage().toString() );
return request;
}
private static ClientMessage createMessage() {
JsonObject json = new JsonObject()
.add( "head", new JsonObject() )
.add( "operations", new JsonArray() );
return new ClientMessage( json );
}
}