/*
* 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.apache.ambari.annotations;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.EnumSet;
import java.util.List;
import java.util.Set;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReadWriteLock;
import org.apache.ambari.annotations.TransactionalLock.LockArea;
import org.apache.ambari.server.AmbariException;
import org.apache.ambari.server.H2DatabaseCleaner;
import org.apache.ambari.server.orm.GuiceJpaInitializer;
import org.apache.ambari.server.orm.InMemoryDefaultTestModule;
import org.apache.ambari.server.orm.TransactionalLocks;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import com.google.inject.Guice;
import com.google.inject.Injector;
import junit.framework.Assert;
/**
* Tests {@link TransactionalLocks} and {@link LockArea} and associated classes.
*/
public class LockAreaTest {
private Injector m_injector;
@Before
public void setup() throws Exception {
m_injector = Guice.createInjector(new InMemoryDefaultTestModule());
m_injector.getInstance(GuiceJpaInitializer.class);
}
@After
public void teardown() throws AmbariException, SQLException {
H2DatabaseCleaner.clearDatabaseAndStopPersistenceService(m_injector);
}
/**
* Tests that for each {@link LockArea}, there's a single {@link Lock}.
*/
@Test
public void testTransactionalLockInstantiation() {
TransactionalLocks locks = m_injector.getInstance(TransactionalLocks.class);
List<ReadWriteLock> lockList = new ArrayList<>();
Set<LockArea> lockAreas = EnumSet.allOf(LockArea.class);
for (LockArea lockArea : lockAreas) {
ReadWriteLock lock = locks.getLock(lockArea);
Assert.assertNotNull(lock);
lockList.add(lock);
}
for (LockArea lockArea : lockAreas) {
Assert.assertTrue(lockList.contains(locks.getLock(lockArea)));
}
}
}