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.task.engine;
  
  import com.alibaba.nacos.api.exception.NacosException;
  import com.alibaba.nacos.common.task.AbstractExecuteTask;
  import com.alibaba.nacos.common.task.NacosTaskProcessor;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.extension.ExtendWith;
  import org.mockito.Mock;
  import org.mockito.junit.jupiter.MockitoExtension;
  
  import java.util.concurrent.TimeUnit;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  import static org.mockito.Mockito.verify;
  
  @ExtendWith(MockitoExtension.class)
  class NacosExecuteTaskExecuteEngineTest {
      
      @Mock
      NacosTaskProcessor taskProcessor;
      
      String cachedProcessor;
      
      private NacosExecuteTaskExecuteEngine executeTaskExecuteEngine;
      
      @Mock
      private AbstractExecuteTask task;
      
      @BeforeEach
      void setUp() {
          cachedProcessor = System.getProperty("nacos.common.processors");
          System.setProperty("nacos.common.processors", "1");
          executeTaskExecuteEngine = new NacosExecuteTaskExecuteEngine("TEST", null);
      }
      
      @AfterEach
      void tearDown() throws NacosException {
          System.setProperty("nacos.common.processors", null == cachedProcessor ? "" : cachedProcessor);
          executeTaskExecuteEngine.shutdown();
      }
      
      @Test
      void testAddTask() throws InterruptedException {
          executeTaskExecuteEngine.addTask("test", task);
          TimeUnit.SECONDS.sleep(1);
          verify(task).run();
          assertTrue(executeTaskExecuteEngine.isEmpty());
          assertEquals(0, executeTaskExecuteEngine.size());
      }
      
      @Test
      void testAddTaskByProcessor() throws InterruptedException {
          executeTaskExecuteEngine.addProcessor("test", taskProcessor);
          executeTaskExecuteEngine.addTask("test", task);
          verify(taskProcessor).process(task);
          assertTrue(executeTaskExecuteEngine.isEmpty());
          assertEquals(0, executeTaskExecuteEngine.size());
      }
      
      @Test
      void testRemoveTask() {
          assertThrows(UnsupportedOperationException.class, () -> {
              executeTaskExecuteEngine.removeTask(task);
          });
      }
      
      @Test
      void testGetAllTaskKeys() {
          assertThrows(UnsupportedOperationException.class, () -> {
              executeTaskExecuteEngine.getAllTaskKeys();
          });
      }
      
      @Test
      void testWorkersStatus() {
          assertEquals("TEST_0%1, pending tasks: 0\n", executeTaskExecuteEngine.workersStatus());
      }
  }
  