/*
* 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.beam.fn.harness.stream;
import static org.hamcrest.collection.IsEmptyCollection.empty;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertThat;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Tests for {@link AdvancingPhaser}. */
@RunWith(JUnit4.class)
public class AdvancingPhaserTest {
@Test
public void testAdvancement() throws Exception {
AdvancingPhaser phaser = new AdvancingPhaser(1);
int currentPhase = phaser.getPhase();
ExecutorService service = Executors.newSingleThreadExecutor();
service.submit(phaser::arrive);
phaser.awaitAdvance(currentPhase);
assertFalse(phaser.isTerminated());
service.shutdown();
if (!service.awaitTermination(10, TimeUnit.SECONDS)) {
assertThat(service.shutdownNow(), empty());
}
}
}