content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * 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.
   */
  
  package com.alibaba.nacos.common.executor;
  
  import org.junit.jupiter.api.Test;
  
  import java.util.concurrent.ExecutorService;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  class ThreadPoolManagerTest {
      
      @Test
      void test() {
          ThreadPoolManager manager = ThreadPoolManager.getInstance();
          ExecutorService executor = ExecutorFactory.newSingleExecutorService();
          String namespace = "test";
          String group = "test";
          
          manager.register(namespace, group, executor);
          assertTrue(manager.getResourcesManager().containsKey(namespace));
          assertEquals(1, manager.getResourcesManager().get(namespace).get(group).size());
          
          manager.register(namespace, group, ExecutorFactory.newSingleExecutorService());
          assertEquals(2, manager.getResourcesManager().get(namespace).get(group).size());
          
          manager.destroy(namespace, group);
          assertFalse(manager.getResourcesManager().get(namespace).containsKey(group));
          
          manager.register(namespace, group, executor);
          manager.destroy(namespace);
          assertFalse(manager.getResourcesManager().containsKey(namespace));
          
          manager.register(namespace, group, executor);
          manager.deregister(namespace, group, ExecutorFactory.newSingleExecutorService());
          assertEquals(1, manager.getResourcesManager().get(namespace).get(group).size());
          
          manager.deregister(namespace, group, executor);
          assertEquals(0, manager.getResourcesManager().get(namespace).get(group).size());
          
          manager.register(namespace, group, executor);
          manager.deregister(namespace, group);
          assertFalse(manager.getResourcesManager().get(namespace).containsKey(group));
          
          manager.register(namespace, group, executor);
          manager.register(namespace, group, ExecutorFactory.newSingleExecutorService());
          ThreadPoolManager.shutdown();
          assertFalse(manager.getResourcesManager().containsKey(namespace));
          
          manager.destroy(namespace);
          manager.destroy(namespace, group);
          assertFalse(manager.getResourcesManager().containsKey(namespace));
      }
      
      @Test
      void testDestroyWithNull() {
          ThreadPoolManager.getInstance().register("t", "g", ExecutorFactory.newFixedExecutorService(1));
          try {
              ThreadPoolManager.getInstance().destroy("null");
              assertTrue(ThreadPoolManager.getInstance().getResourcesManager().containsKey("t"));
              ThreadPoolManager.getInstance().destroy("null", "g");
              assertTrue(ThreadPoolManager.getInstance().getResourcesManager().containsKey("t"));
          } finally {
              ThreadPoolManager.getInstance().destroy("t", "g");
          }
      }
  }
  