| /** |
| * 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 java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.atomic.AtomicReference; |
| import junit.framework.TestCase; |
| |
| /** |
| * @author jessewilson@google.com (Jesse Wilson) |
| */ |
| public class BindingOrderTest extends TestCase { |
| |
| public void testBindingOutOfOrder() { |
| Guice.createInjector(new AbstractModule() { |
| protected void configure() { |
| bind(BoundFirst.class); |
| bind(BoundSecond.class).to(BoundSecondImpl.class); |
| } |
| }); |
| } |
| |
| public static class BoundFirst { |
| @Inject public BoundFirst(BoundSecond boundSecond) { } |
| } |
| |
| interface BoundSecond { } |
| static class BoundSecondImpl implements BoundSecond { } |
| |
| public void testBindingOrderAndScopes() { |
| Injector injector = Guice.createInjector(new AbstractModule() { |
| protected void configure() { |
| bind(A.class); |
| bind(B.class).asEagerSingleton(); |
| } |
| }); |
| |
| assertSame(injector.getInstance(A.class).b, injector.getInstance(A.class).b); |
| } |
| |
| public void testBindingWithExtraThreads() throws InterruptedException { |
| final CountDownLatch ready = new CountDownLatch(1); |
| final CountDownLatch done = new CountDownLatch(1); |
| final AtomicReference<B> ref = new AtomicReference<B>(); |
| |
| final Object createsAThread = new Object() { |
| @Inject void createAnotherThread(final Injector injector) { |
| new Thread() { |
| public void run() { |
| ready.countDown(); |
| A a = injector.getInstance(A.class); |
| ref.set(a.b); |
| done.countDown(); |
| } |
| }.start(); |
| |
| // to encourage collisions, we make sure the other thread is running before returning |
| try { |
| ready.await(); |
| } catch (InterruptedException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| }; |
| |
| Guice.createInjector(new AbstractModule() { |
| protected void configure() { |
| requestInjection(createsAThread); |
| bind(A.class).toInstance(new A()); |
| } |
| }); |
| |
| done.await(); |
| assertNotNull(ref.get()); |
| } |
| |
| static class A { |
| @Inject B b; |
| } |
| |
| static class B { } |
| } |