| /** |
| * 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; |
| |
| import junit.framework.TestCase; |
| |
| /** |
| * @author crazybob@google.com (Bob Lee) |
| */ |
| public class ProviderInjectionTest extends TestCase { |
| |
| public void testProviderInjection() throws CreationException { |
| BinderImpl builder = new BinderImpl(); |
| |
| builder.bind(Bar.class); |
| builder.bind(SampleSingleton.class).in(Scopes.SINGLETON); |
| |
| Injector injector = builder.createInjector(); |
| |
| Foo foo = injector.getInstance(Foo.class); |
| |
| Bar bar = foo.barProvider.get(); |
| assertNotNull(bar); |
| assertNotSame(bar, foo.barProvider.get()); |
| |
| SampleSingleton singleton = foo.singletonProvider.get(); |
| assertNotNull(singleton); |
| assertSame(singleton, foo.singletonProvider.get()); |
| } |
| |
| static class Foo { |
| @Inject Provider<Bar> barProvider; |
| @Inject Provider<SampleSingleton> singletonProvider; |
| } |
| |
| static class Bar {} |
| |
| static class SampleSingleton {} |
| } |