guiceinjectortest.java

Wicket一个开发Java Web应用程序框架。它使得开发web应用程序变得容易而轻松。 Wicket利用一个POJO data beans组件使得它可以与任何持久层技术相结合。

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 * 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
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package org.apache.wicket.guice;

import java.util.HashMap;
import java.util.Map;

import junit.framework.TestCase;

import org.apache.wicket.Application;
import org.apache.wicket.markup.html.WebPage;
import org.apache.wicket.protocol.http.HttpSessionStore;
import org.apache.wicket.protocol.http.MockWebApplication;
import org.apache.wicket.protocol.http.WebApplication;
import org.apache.wicket.session.ISessionStore;
import org.apache.wicket.util.lang.Objects;

import com.google.inject.Binder;
import com.google.inject.Module;
import com.google.inject.Provider;
import com.google.inject.TypeLiteral;

public class GuiceInjectorTest extends TestCase
{
	public void testInjectionAndSerialization()
	{
		MockWebApplication mockApp = new MockWebApplication(new WebApplication()
		{
			@Override
			protected void outputDevelopmentModeWarning()
			{
				// Do nothing.
			}

			@Override
			public Class<WebPage> getHomePage()
			{
				return null;
			}

			@Override
			protected ISessionStore newSessionStore()
			{
				// Don't use a filestore, or we spawn lots of threads, which
				// makes things slow.
				return new HttpSessionStore(this);
			}
		}, null);

		// Make a new webapp and injector, and register the injector with the
		// webapp as a component instantiation listener.
		Application app = mockApp.getApplication();

		try
		{
			Application.set(app);
			GuiceComponentInjector injector = new GuiceComponentInjector(app, new Module()
			{

				public void configure(Binder binder)
				{
					binder.bind(ITestService.class).to(TestService.class);
					binder.bind(ITestService.class).annotatedWith(Red.class).to(
							TestServiceRed.class);
					binder.bind(ITestService.class).annotatedWith(Blue.class).to(
							TestServiceBlue.class);
					binder.bind(new TypeLiteral<Map<String, String>>()
					{
					}).toProvider(new Provider<Map<String, String>>()
					{
						public Map<String, String> get()
						{
							Map<String, String> strings = new HashMap<String, String>();

							strings.put(ITestService.RESULT, ITestService.RESULT);

							return strings;
						}
					});
				}

			});
			app.addComponentInstantiationListener(injector);

			// Create a new component, which should be automatically injected,
			// and test to make sure the injection has worked.
			TestComponent testComponent = new TestComponent("id");
			doChecksForComponent(testComponent);

			// Serialize and deserialize the object, and check it still works.
			TestComponent clonedComponent = (TestComponent)Objects.cloneObject(testComponent);
			doChecksForComponent(clonedComponent);

		}
		finally
		{
			Application.unset();
		}
	}

	private void doChecksForComponent(TestComponent component)
	{
		assertEquals(ITestService.RESULT, component.getInjectedField().getString());
		assertEquals(ITestService.RESULT_RED, component.getInjectedFieldRed().getString());
		assertEquals(ITestService.RESULT_BLUE, component.getInjectedFieldBlue().getString());
		assertEquals(ITestService.RESULT, component.getInjectedMethod().getString());
		assertEquals(ITestService.RESULT_BLUE, component.getInjectedMethodBlue().getString());
		assertEquals(ITestService.RESULT_RED, component.getInjectedMethodRed().getString());

		assertEquals(ITestService.RESULT, component.getInjectedFieldProvider().get().getString());
		assertEquals(ITestService.RESULT, component.getInjectedMethodProvider().get().getString());

		assertEquals(ITestService.RESULT, component.getInjectedTypeLiteralField().get(
				ITestService.RESULT));
		assertEquals(ITestService.RESULT, component.getInjectedTypeLiteralMethod().get(
				ITestService.RESULT));
	}
}