package com.hazelcast.concurrent.countdownlatch;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.core.ICountDownLatch;
import com.hazelcast.test.HazelcastParallelClassRunner;
import com.hazelcast.test.HazelcastTestSupport;
import com.hazelcast.test.TestHazelcastInstanceFactory;
import com.hazelcast.test.annotation.ClientCompatibleTest;
import com.hazelcast.test.annotation.QuickTest;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import static org.junit.Assert.assertEquals;
@RunWith(HazelcastParallelClassRunner.class)
@Category(QuickTest.class)
public class CountDownLatchMigrationTest extends HazelcastTestSupport {
@Test
@ClientCompatibleTest
public void testLatchMigration() throws InterruptedException {
TestHazelcastInstanceFactory factory = createHazelcastInstanceFactory(5);
HazelcastInstance hz1 = factory.newHazelcastInstance();
HazelcastInstance hz2 = factory.newHazelcastInstance();
warmUpPartitions(hz2, hz1);
ICountDownLatch latch1 = hz1.getCountDownLatch("test");
latch1.trySetCount(10);
Thread.sleep(500);
ICountDownLatch latch2 = hz2.getCountDownLatch("test");
assertEquals(10, latch2.getCount());
latch2.countDown();
assertEquals(9, latch1.getCount());
hz1.shutdown();
assertEquals(9, latch2.getCount());
HazelcastInstance hz3 = factory.newHazelcastInstance();
warmUpPartitions(hz3);
ICountDownLatch latch3 = hz3.getCountDownLatch("test");
latch3.countDown();
assertEquals(8, latch3.getCount());
hz2.shutdown();
latch3.countDown();
assertEquals(7, latch3.getCount());
HazelcastInstance hz4 = factory.newHazelcastInstance();
HazelcastInstance hz5 = factory.newHazelcastInstance();
warmUpPartitions(hz5, hz4);
Thread.sleep(250);
hz3.shutdown();
ICountDownLatch latch4 = hz4.getCountDownLatch("test");
assertEquals(7, latch4.getCount());
ICountDownLatch latch5 = hz5.getCountDownLatch("test");
latch5.countDown();
assertEquals(6, latch5.getCount());
latch5.countDown();
assertEquals(5, latch4.getCount());
assertEquals(5, latch5.getCount());
}
}