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     private void sleep() {
  40         try {
  41             Thread.sleep(100);
  42         } catch (InterruptedException e) {
  43         }
  44     }
  45
  46     private void asynchUnlock(Lock lock) {
  47         Thread t = new Thread(() -> {
  48             sleep();
  49             lock.unlockBlocking();
  50         });
  51         t.start();
  52     }
  53
  54     @Test
  55     public void testLock() throws IOException, ServiceException {
  56         Lock lock = new Lock();
  57         lock.lockBlocking(LockType.SHARED);
  58         lock.unlockBlocking();
  59
  60         lock.lockBlocking(LockType.EXCLUSIVE);
  61         asynchUnlock(lock);
  62
  63         lock.lockBlocking(LockType.SHARED);
  64         lock.unlockBlocking();
  65
  66         assertThat(lock.getLockCounter()).isEqualTo(0);
  67     }
  68
  69     @Test
  70     public void testReactiveLock() {
  71         Lock lock = new Lock();
  72
  73         Mono<Lock> seq = lock.lock(LockType.EXCLUSIVE) //
  74             .doOnNext(l -> System.out.println("1 " + l)) //
  75             .flatMap(l -> lock.lock(LockType.EXCLUSIVE)) //
  76             .flatMap(l -> lock.unlock()) //
  77             .doOnNext(l -> System.out.println("2 " + l)); //
  78
  79         asynchUnlock(lock);
  80         StepVerifier.create(seq) //
  81             .expectSubscription() //
  82             .expectNext(lock) //
  83             .verifyComplete();
  84
  85         assertThat(lock.getLockCounter()).isEqualTo(0);
  86
  87     }
  88
  89 }