| /* |
| * 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.samza.task; |
| |
| import java.util.concurrent.CyclicBarrier; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicInteger; |
| import org.apache.samza.system.IncomingMessageEnvelope; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| import static org.mockito.Mockito.mock; |
| |
| |
| public class TestTaskCallbackImpl { |
| |
| TaskCallbackListener listener = null; |
| AtomicInteger completeCount; |
| AtomicInteger failureCount; |
| TaskCallback callback = null; |
| Throwable throwable = null; |
| |
| @Before |
| public void setup() { |
| completeCount = new AtomicInteger(0); |
| failureCount = new AtomicInteger(0); |
| throwable = null; |
| |
| listener = new TaskCallbackListener() { |
| |
| @Override |
| public void onComplete(TaskCallback callback) { |
| completeCount.incrementAndGet(); |
| } |
| |
| @Override |
| public void onFailure(TaskCallback callback, Throwable t) { |
| throwable = t; |
| failureCount.incrementAndGet(); |
| } |
| }; |
| |
| callback = new TaskCallbackImpl(listener, null, mock(IncomingMessageEnvelope.class), null, 0L, 0L); |
| } |
| |
| @Test |
| public void testComplete() { |
| callback.complete(); |
| assertEquals(1L, completeCount.get()); |
| assertEquals(0L, failureCount.get()); |
| } |
| |
| @Test |
| public void testFailure() { |
| callback.failure(new Exception("dummy exception")); |
| assertEquals(0L, completeCount.get()); |
| assertEquals(1L, failureCount.get()); |
| } |
| |
| @Test |
| public void testCallbackMultipleComplete() { |
| callback.complete(); |
| assertEquals(1L, completeCount.get()); |
| |
| callback.complete(); |
| assertEquals(1L, failureCount.get()); |
| assertTrue(throwable instanceof IllegalStateException); |
| } |
| |
| @Test |
| public void testCallbackFailureAfterComplete() { |
| callback.complete(); |
| assertEquals(1L, completeCount.get()); |
| |
| callback.failure(new Exception("dummy exception")); |
| assertEquals(1L, failureCount.get()); |
| assertTrue(throwable instanceof IllegalStateException); |
| } |
| |
| |
| @Test |
| public void testMultithreadedCallbacks() throws Exception { |
| final CyclicBarrier barrier = new CyclicBarrier(2); |
| ExecutorService executor = Executors.newFixedThreadPool(2); |
| |
| for (int i = 0; i < 2; i++) { |
| executor.submit(new Runnable() { |
| @Override |
| public void run() { |
| try { |
| barrier.await(); |
| callback.complete(); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| }); |
| } |
| executor.awaitTermination(1, TimeUnit.SECONDS); |
| assertEquals(1L, completeCount.get()); |
| assertEquals(1L, failureCount.get()); |
| assertTrue(throwable instanceof IllegalStateException); |
| } |
| } |