/*
* Copyright 2015 Netflix, 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.netflix.eureka.util.batcher;
import java.util.List;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingDeque;
import com.netflix.eureka.util.batcher.TaskProcessor.ProcessingResult;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import static com.netflix.eureka.util.batcher.RecordingProcessor.permanentErrorTaskHolder;
import static com.netflix.eureka.util.batcher.RecordingProcessor.successfulTaskHolder;
import static com.netflix.eureka.util.batcher.RecordingProcessor.transientErrorTaskHolder;
import static java.util.Arrays.asList;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.timeout;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
/**
* @author Tomasz Bak
*/
public class TaskExecutorsTest {
@SuppressWarnings("unchecked")
private final AcceptorExecutor<Integer, ProcessingResult> acceptorExecutor = mock(AcceptorExecutor.class);
private final RecordingProcessor processor = new RecordingProcessor();
private final BlockingQueue<TaskHolder<Integer, ProcessingResult>> taskQueue = new LinkedBlockingDeque<>();
private final BlockingQueue<List<TaskHolder<Integer, ProcessingResult>>> taskBatchQueue = new LinkedBlockingDeque<>();
private TaskExecutors<Integer, ProcessingResult> taskExecutors;
@Before
public void setUp() throws Exception {
when(acceptorExecutor.requestWorkItem()).thenReturn(taskQueue);
when(acceptorExecutor.requestWorkItems()).thenReturn(taskBatchQueue);
}
@After
public void tearDown() throws Exception {
taskExecutors.shutdown();
}
@Test
public void testSingleItemSuccessfulProcessing() throws Exception {
taskExecutors = TaskExecutors.singleItemExecutors("TEST", 1, processor, acceptorExecutor);
taskQueue.add(successfulTaskHolder(1));
processor.expectSuccesses(1);
}
@Test
public void testBatchSuccessfulProcessing() throws Exception {
taskExecutors = TaskExecutors.batchExecutors("TEST", 1, processor, acceptorExecutor);
taskBatchQueue.add(asList(successfulTaskHolder(1), successfulTaskHolder(2)));
processor.expectSuccesses(2);
}
@Test
public void testSingleItemProcessingWithTransientError() throws Exception {
taskExecutors = TaskExecutors.singleItemExecutors("TEST", 1, processor, acceptorExecutor);
TaskHolder<Integer, ProcessingResult> taskHolder = transientErrorTaskHolder(1);
taskQueue.add(taskHolder);
// Verify that transient task is be re-scheduled
processor.expectTransientErrors(1);
verify(acceptorExecutor, timeout(500).times(1)).reprocess(taskHolder, ProcessingResult.TransientError);
}
@Test
public void testBatchProcessingWithTransientError() throws Exception {
taskExecutors = TaskExecutors.batchExecutors("TEST", 1, processor, acceptorExecutor);
List<TaskHolder<Integer, ProcessingResult>> taskHolderBatch = asList(transientErrorTaskHolder(1), transientErrorTaskHolder(2));
taskBatchQueue.add(taskHolderBatch);
// Verify that transient task is be re-scheduled
processor.expectTransientErrors(2);
verify(acceptorExecutor, timeout(500).times(1)).reprocess(taskHolderBatch, ProcessingResult.TransientError);
}
@Test
public void testSingleItemProcessingWithPermanentError() throws Exception {
taskExecutors = TaskExecutors.singleItemExecutors("TEST", 1, processor, acceptorExecutor);
TaskHolder<Integer, ProcessingResult> taskHolder = permanentErrorTaskHolder(1);
taskQueue.add(taskHolder);
// Verify that transient task is re-scheduled
processor.expectPermanentErrors(1);
verify(acceptorExecutor, never()).reprocess(taskHolder, ProcessingResult.TransientError);
}
@Test
public void testBatchProcessingWithPermanentError() throws Exception {
taskExecutors = TaskExecutors.batchExecutors("TEST", 1, processor, acceptorExecutor);
List<TaskHolder<Integer, ProcessingResult>> taskHolderBatch = asList(permanentErrorTaskHolder(1), permanentErrorTaskHolder(2));
taskBatchQueue.add(taskHolderBatch);
// Verify that transient task is re-scheduled
processor.expectPermanentErrors(2);
verify(acceptorExecutor, never()).reprocess(taskHolderBatch, ProcessingResult.TransientError);
}
}