/*
* 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
* limitations under the License.
*/
package org.jclouds.events.config;
import static org.testng.Assert.assertNotNull;
import static org.testng.Assert.assertTrue;
import org.jclouds.Constants;
import org.jclouds.concurrent.config.ExecutorServiceModule;
import org.jclouds.events.config.annotations.AsyncBus;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
import com.google.common.eventbus.AsyncEventBus;
import com.google.common.eventbus.EventBus;
import com.google.inject.Guice;
import com.google.inject.Injector;
import com.google.inject.Key;
import com.google.inject.name.Names;
/**
* Unit tests for the {@link EventBusModule} class.
*
* @author Ignasi Barrera
*/
@Test(groups = "unit", testName = "EventBusModuleTest")
public class EventBusModuleTest {
private Injector injector;
@BeforeClass
public void setup() {
ExecutorServiceModule userExecutorModule = new ExecutorServiceModule() {
@Override
protected void configure() {
bindConstant().annotatedWith(Names.named(Constants.PROPERTY_IO_WORKER_THREADS)).to(1);
bindConstant().annotatedWith(Names.named(Constants.PROPERTY_USER_THREADS)).to(1);
super.configure();
}
};
EventBusModule eventBusModule = new EventBusModule();
injector = Guice.createInjector(userExecutorModule, eventBusModule);
}
public void testAsyncExecutorIsProvided() {
assertNotNull(injector.getInstance(AsyncEventBus.class));
}
public void testAsyncAnnotatedEventBusIsBound() {
Key<EventBus> eventBusKey = Key.get(EventBus.class, AsyncBus.class);
EventBus eventBus = injector.getInstance(eventBusKey);
assertNotNull(eventBus);
assertTrue(eventBus instanceof AsyncEventBus);
}
public void testEventBusIsSingleton() {
EventBus eventBus1 = injector.getInstance(EventBus.class);
EventBus eventBus2 = injector.getInstance(EventBus.class);
assertTrue(eventBus1 == eventBus2);
}
}