policy-agent/src/test/java/org/oransc/policyagent/repository/LockTest.java

   1 /*-
   2  * ========================LICENSE_START=================================
   3  * O-RAN-SC
   4  * %%
   5  * Copyright (C) 2019 Nordix Foundation
   6  * %%
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ========================LICENSE_END===================================
  19  */
  20
  21 package org.oransc.policyagent.repository;
  22
  23 import static org.assertj.core.api.Assertions.assertThat;
  24
  25 import java.io.IOException;
  26
  27 import org.junit.jupiter.api.Test;
  28 import org.junit.jupiter.api.extension.ExtendWith;
  29 import org.mockito.junit.jupiter.MockitoExtension;
  30 import org.oransc.policyagent.exceptions.ServiceException;
  31 import org.oransc.policyagent.repository.Lock.LockType;
  32
  33 import reactor.core.publisher.Mono;
  34 import reactor.test.StepVerifier;
  35
  36 @ExtendWith(MockitoExtension.class)
  37 class LockTest {
  38
  39     @SuppressWarnings("squid:S2925") // "Thread.sleep" should not be used in tests.
  40     private void sleep() {
  41         try {
  42             Thread.sleep(100);
  43         } catch (InterruptedException e) {
  44             // Do nothing.
  45         }
  46     }
  47
  48     private void asynchUnlock(Lock lock) {
  49         Thread thread = new Thread(() -> {
  50             sleep();
  51             lock.unlockBlocking();
  52         });
  53         thread.start();
  54     }
  55
  56     @Test
  57     void testLock() throws IOException, ServiceException {
  58         Lock lock = new Lock();
  59         lock.lockBlocking(LockType.SHARED);
  60         lock.unlockBlocking();
  61
  62         lock.lockBlocking(LockType.EXCLUSIVE);
  63         asynchUnlock(lock);
  64
  65         lock.lockBlocking(LockType.SHARED);
  66         lock.unlockBlocking();
  67
  68         assertThat(lock.getLockCounter()).isZero();
  69     }
  70
  71     @Test
  72     void testReactiveLock() {
  73         Lock lock = new Lock();
  74
  75         Mono<Lock> seq = lock.lock(LockType.EXCLUSIVE) //
  76             .flatMap(l -> lock.lock(LockType.EXCLUSIVE)) //
  77             .flatMap(l -> lock.unlock());
  78
  79         asynchUnlock(lock);
  80         StepVerifier.create(seq) //
  81             .expectSubscription() //
  82             .expectNext(lock) //
  83             .verifyComplete();
  84
  85         assertThat(lock.getLockCounter()).isZero();
  86
  87     }
  88
  89 }