// Copyright (C) 2011 Splunk Inc.
//
// Splunk Inc. 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 com.splunk.shuttl.archiver.bucketlock;
import static com.splunk.shuttl.testutil.TUtilsFile.*;
import static org.mockito.Mockito.*;
import static org.testng.AssertJUnit.*;
import java.io.File;
import java.io.IOException;
import org.apache.commons.io.FileUtils;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import com.splunk.shuttl.archiver.bucketlock.BucketLocker.SharedLockBucketHandler;
import com.splunk.shuttl.archiver.model.Bucket;
import com.splunk.shuttl.testutil.TUtilsBucket;
@Test(groups = { "fast-unit" })
public class BucketLockerTest {
File tempTestDirectory;
Bucket bucket;
BucketLocker bucketLocker;
@BeforeMethod
public void setUp() {
tempTestDirectory = createDirectory();
bucket = TUtilsBucket.createBucketInDirectory(tempTestDirectory);
bucketLocker = new BucketLocker() {
@Override
public BucketLock getLockForBucket(Bucket bucket) {
return new BucketLock(bucket, tempTestDirectory);
}
};
}
@AfterMethod
public void tearDown() throws IOException {
FileUtils.deleteDirectory(tempTestDirectory);
}
@Test(groups = { "fast-unit" })
public void callBucketHandlerUnderSharedLock_givenBucketThatCanBeLocked_executesRunnable() {
NoOpBucketHandler bucketHandler = new NoOpBucketHandler();
bucketLocker.callBucketHandlerUnderSharedLock(bucket, bucketHandler);
assertTrue(bucketHandler.wasRun);
assertFalse(bucketHandler.wasLocked);
}
public void callBucketHandlerUnderSharedLock_givenLockedBucket_doesNotExecuteRunnable() {
BucketLock bucketLock = bucketLocker.getLockForBucket(bucket);
assertTrue(bucketLock.tryLockExclusive());
NoOpBucketHandler bucketHandler = new NoOpBucketHandler();
bucketLocker.callBucketHandlerUnderSharedLock(bucket, bucketHandler);
assertFalse(bucketHandler.wasRun);
assertTrue(bucketHandler.wasLocked);
}
public void callBucketHandlerUnderSharedLock_runOnceAlreadyAndReleasedTheLock_executesRunnableAgain() {
NoOpBucketHandler firstHandler = new NoOpBucketHandler();
NoOpBucketHandler secondHandler = new NoOpBucketHandler();
bucketLocker.callBucketHandlerUnderSharedLock(bucket, firstHandler);
bucketLocker.callBucketHandlerUnderSharedLock(bucket, secondHandler);
assertTrue(firstHandler.wasRun);
assertTrue(secondHandler.wasRun);
}
public void callBucketHandlerUnderSharedLock_givenLockedBucketHandler_callsBucketHandlerToHandleTheBucket() {
SharedLockBucketHandler bucketHandler = mock(SharedLockBucketHandler.class);
bucketLocker.callBucketHandlerUnderSharedLock(bucket, bucketHandler);
verify(bucketHandler).handleSharedLockedBucket(bucket);
}
public static class NoOpBucketHandler implements SharedLockBucketHandler {
public boolean wasRun = false;
public boolean wasLocked = false;
@Override
public void handleSharedLockedBucket(Bucket bucket) {
wasRun = true;
}
@Override
public void bucketWasLocked(Bucket bucket) {
wasLocked = true;
}
}
}