| /** |
| * Copyright (C) 2006 Google Inc. |
| * |
| * 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.google.inject.servlet; |
| |
| import com.google.inject.Guice; |
| import com.google.inject.Inject; |
| import com.google.inject.Injector; |
| import java.lang.reflect.InvocationHandler; |
| import java.lang.reflect.Method; |
| import java.lang.reflect.Proxy; |
| import java.util.HashMap; |
| import java.util.Map; |
| import javax.servlet.ServletConfig; |
| import javax.servlet.ServletContext; |
| import javax.servlet.ServletContextEvent; |
| import javax.servlet.ServletException; |
| import junit.framework.TestCase; |
| import static org.easymock.EasyMock.createMock; |
| import static org.easymock.EasyMock.expect; |
| import static org.easymock.EasyMock.replay; |
| import static org.easymock.EasyMock.verify; |
| |
| public class InjectedHttpServletTest extends TestCase { |
| |
| private static class MyDependency {} |
| |
| private static class MyServlet extends InjectedHttpServlet { |
| @Inject MyDependency myDependency; |
| } |
| |
| static class MyListener extends GuiceServletContextListener { |
| protected Injector getInjector() { |
| return Guice.createInjector(); |
| } |
| } |
| |
| public void test() throws ServletException { |
| |
| Map<String,Object> attributes = new HashMap<String,Object>(); |
| ServletContext context = createFakeServletContext(attributes); |
| |
| ServletConfig config = createMock(ServletConfig.class); |
| expect(config.getServletContext()).andReturn(context).atLeastOnce(); |
| replay(config); |
| |
| GuiceServletContextListener listener = new MyListener(); |
| listener.contextInitialized(new ServletContextEvent(context)); |
| assertEquals(1, attributes.size()); |
| |
| MyServlet servlet = new MyServlet(); |
| servlet.init(config); |
| verify(config); |
| assertNotNull(servlet.myDependency); |
| |
| listener.contextDestroyed(new ServletContextEvent(context)); |
| assertTrue(attributes.isEmpty()); |
| } |
| |
| private static ServletContext createFakeServletContext( |
| final Map<String, Object> attributes) { |
| InvocationHandler handler = new InvocationHandler() { |
| public Object invoke(Object object, Method method, Object[] objects) |
| throws Throwable { |
| if (method.getName().equals("setAttribute")) { |
| attributes.put((String) objects[0], objects[1]); |
| return null; |
| } |
| if (method.getName().equals("getAttribute")) { |
| return attributes.get(objects[0]); |
| } |
| if (method.getName().equals("removeAttribute")) { |
| attributes.remove(objects[0]); |
| return null; |
| } |
| throw new UnsupportedOperationException(); |
| } |
| }; |
| |
| return (ServletContext) Proxy.newProxyInstance( |
| ServletContext.class.getClassLoader(), |
| new Class[] { ServletContext.class }, |
| handler); |
| } |
| } |