content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements. See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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 org.apache.kafka.common.utils;
  
  import org.junit.jupiter.api.Test;
  
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.List;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  public class ExitTest {
      @Test
      public void shouldHaltImmediately() {
          List<Object> list = new ArrayList<>();
          Exit.setHaltProcedure((statusCode, message) -> {
              list.add(statusCode);
              list.add(message);
          });
          try {
              int statusCode = 0;
              String message = "message";
              Exit.halt(statusCode);
              Exit.halt(statusCode, message);
              assertEquals(Arrays.asList(statusCode, null, statusCode, message), list);
          } finally {
              Exit.resetHaltProcedure();
          }
      }
  
      @Test
      public void shouldExitImmediately() {
          List<Object> list = new ArrayList<>();
          Exit.setExitProcedure((statusCode, message) -> {
              list.add(statusCode);
              list.add(message);
          });
          try {
              int statusCode = 0;
              String message = "message";
              Exit.exit(statusCode);
              Exit.exit(statusCode, message);
              assertEquals(Arrays.asList(statusCode, null, statusCode, message), list);
          } finally {
              Exit.resetExitProcedure();
          }
      }
  
      @Test
      public void shouldAddShutdownHookImmediately() {
          List<Object> list = new ArrayList<>();
          Exit.setShutdownHookAdder((name, runnable) -> {
              list.add(name);
              list.add(runnable);
          });
          try {
              Runnable runnable = () -> { };
              String name = "name";
              Exit.addShutdownHook(name, runnable);
              assertEquals(Arrays.asList(name, runnable), list);
          } finally {
              Exit.resetShutdownHookAdder();
          }
      }
  
      @Test
      public void shouldNotInvokeShutdownHookImmediately() {
          List<Object> list = new ArrayList<>();
          Runnable runnable = () -> list.add(this);
          Exit.addShutdownHook("message", runnable);
          assertEquals(0, list.size());
      }
  }
  