elasticjob-cloud/elastic-job-cloud-common/src/test/java/org/apache/shardingsphere/elasticjob/cloud/util/concurrent/ExecutorServiceObjectTest.java

/*
 * 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.shardingsphere.elasticjob.cloud.util.concurrent;

import org.hamcrest.core.Is;
import org.junit.Assert;
import org.junit.Test;
import java.util.concurrent.ExecutorService;

public final class ExecutorServiceObjectTest {
    
    private ExecutorServiceObject executorServiceObject;
    
    @Test
    public void assertCreateExecutorService() {
        executorServiceObject = new ExecutorServiceObject("executor-service-test", 1);
        Assert.assertThat(executorServiceObject.getActiveThreadCount(), Is.is(0));
        Assert.assertThat(executorServiceObject.getWorkQueueSize(), Is.is(0));
        Assert.assertFalse(executorServiceObject.isShutdown());
        ExecutorService executorService = executorServiceObject.createExecutorService();
        executorService.submit(new FooTask());
        BlockUtils.waitingShortTime();
        Assert.assertThat(executorServiceObject.getActiveThreadCount(), Is.is(1));
        Assert.assertThat(executorServiceObject.getWorkQueueSize(), Is.is(0));
        Assert.assertFalse(executorServiceObject.isShutdown());
        executorService.submit(new FooTask());
        BlockUtils.waitingShortTime();
        Assert.assertThat(executorServiceObject.getActiveThreadCount(), Is.is(1));
        Assert.assertThat(executorServiceObject.getWorkQueueSize(), Is.is(1));
        Assert.assertFalse(executorServiceObject.isShutdown());
        executorService.shutdownNow();
        Assert.assertThat(executorServiceObject.getWorkQueueSize(), Is.is(0));
        Assert.assertTrue(executorServiceObject.isShutdown());
    }
    
    class FooTask implements Runnable {
        
        @Override
        public void run() {
            BlockUtils.sleep(1000L);
        }
    }
}