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/*-
* ========================LICENSE_START=================================
* ONAP : ccsdk oran
* ======================================================================
* Copyright (C) 2019-2020 Nordix Foundation. All rights reserved.
* ======================================================================
* Licensed 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.
* ========================LICENSE_END===================================
*/
package org.onap.ccsdk.oran.a1policymanagementservice.repository;
import static org.assertj.core.api.Assertions.assertThat;
import static org.awaitility.Awaitility.await;
import java.io.IOException;
import java.lang.invoke.MethodHandles;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.junit.jupiter.MockitoExtension;
import org.onap.ccsdk.oran.a1policymanagementservice.exceptions.ServiceException;
import org.onap.ccsdk.oran.a1policymanagementservice.repository.Lock.LockType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import reactor.test.StepVerifier;
@ExtendWith(MockitoExtension.class)
class LockTest {
private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
@SuppressWarnings("squid:S2925") // "Thread.sleep" should not be used in tests.
private void sleep() {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
// Do nothing.
}
}
private void asynchUnlock(Lock.Grant grant, Lock lock) {
logger.info("Lock {} cnt: {}, exclusive: {}, queue: {}", grant.getLabel(), lock.getLockCounter(),
lock.isExclusive, lock.lockRequestQueue.size());
Thread thread = new Thread(() -> {
sleep();
grant.unlockBlocking();
});
thread.start();
}
@Test
void testLock() throws IOException, ServiceException {
Lock lock = new Lock("l1");
Lock.Grant grant = lock.lockBlocking(LockType.SHARED, "test");
grant.unlockBlocking();
assertThat(grant.getLabel()).isEqualTo("test");
grant = lock.lockBlocking(LockType.EXCLUSIVE, "");
asynchUnlock(grant, lock);
grant = lock.lockBlocking(LockType.SHARED, "");
grant.unlockBlocking();
assertThat(lock.getLockCounter()).isZero();
}
@Test
void testReactiveLock() {
Lock lock = new Lock("l1");
Mono<?> l0 = lock.lock(LockType.EXCLUSIVE, "1").doOnNext(grant -> asynchUnlock(grant, lock));
Mono<?> l1 = lock.lock(LockType.SHARED, "2").doOnNext(grant -> asynchUnlock(grant, lock));
Mono<?> l2 = lock.lock(LockType.SHARED, "3").doOnNext(grant -> asynchUnlock(grant, lock));
Mono<?> l3 = lock.lock(LockType.EXCLUSIVE, "4").doOnNext(grant -> asynchUnlock(grant, lock));
Mono<?> l4 = lock.lock(LockType.SHARED, "5").doOnNext(grant -> asynchUnlock(grant, lock));
StepVerifier.create(Flux.zip(l0, l1, l2, l3, l4)) //
.expectSubscription() //
.expectNextCount(1) //
.verifyComplete();
await().untilAsserted(() -> assertThat(lock.getLockCounter()).isZero());
}
}
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