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 public class LockTest {
  38
  39     @SuppressWarnings("squid:S2276") // Remove this use of "Thread.sleep()".
  40     private void sleep() {
  41         try {
  42             Thread.sleep(100);
  43         } catch (InterruptedException e) {
  44         }
  45     }
  46
  47     private void asynchUnlock(Lock lock) {
  48         Thread t = new Thread(() -> {
  49             sleep();
  50             lock.unlockBlocking();
  51         });
  52         t.start();
  53     }
  54
  55     @Test
  56     public void testLock() throws IOException, ServiceException {
  57         Lock lock = new Lock();
  58         lock.lockBlocking(LockType.SHARED);
  59         lock.unlockBlocking();
  60
  61         lock.lockBlocking(LockType.EXCLUSIVE);
  62         asynchUnlock(lock);
  63
  64         lock.lockBlocking(LockType.SHARED);
  65         lock.unlockBlocking();
  66
  67         assertThat(lock.getLockCounter()).isEqualTo(0);
  68     }
  69
  70     @Test
  71     public void testReactiveLock() {
  72         Lock lock = new Lock();
  73
  74         Mono<Lock> seq = lock.lock(LockType.EXCLUSIVE) //
  75             .flatMap(l -> lock.lock(LockType.EXCLUSIVE)) //
  76             .flatMap(l -> lock.unlock());
  77
  78         asynchUnlock(lock);
  79         StepVerifier.create(seq) //
  80             .expectSubscription() //
  81             .expectNext(lock) //
  82             .verifyComplete();
  83
  84         assertThat(lock.getLockCounter()).isEqualTo(0);
  85
  86     }
  87
  88 }