/*
 * 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.assertEquals;

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());
    }
}