| /* |
| * 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.rocketmq.remoting.common; |
| |
| import java.util.concurrent.Semaphore; |
| import org.apache.rocketmq.remoting.BaseTest; |
| import org.junit.Test; |
| |
| import static org.junit.Assert.*; |
| |
| public class SemaphoreReleaseOnlyOnceTest extends BaseTest { |
| |
| @Test |
| public void release_Success() { |
| Semaphore semaphore = new Semaphore(0); |
| final SemaphoreReleaseOnlyOnce once = new SemaphoreReleaseOnlyOnce(semaphore); |
| |
| runInThreads(new Runnable() { |
| @Override |
| public void run() { |
| once.release(); |
| } |
| }, 10); |
| |
| assertEquals(1, semaphore.availablePermits()); |
| } |
| } |