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
   *
   *    https://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.bigtop.manager.server.holder;
  
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNull;
  
  public class SessionUserHolderTest {
  
      @BeforeEach
      public void setUp() {
          SessionUserHolder.clear();
      }
  
      @AfterEach
      public void tearDown() {
          SessionUserHolder.clear();
      }
  
      @Test
      public void testSetAndGetUserId() {
          Long testUserId = 12345L;
          SessionUserHolder.setUserId(testUserId);
  
          Long retrievedUserId = SessionUserHolder.getUserId();
          assertEquals(testUserId, retrievedUserId);
      }
  
      @Test
      public void testClear() {
          Long testUserId = 12345L;
          SessionUserHolder.setUserId(testUserId);
  
          SessionUserHolder.clear();
  
          Long retrievedUserId = SessionUserHolder.getUserId();
          assertNull(retrievedUserId);
      }
  
      @Test
      public void testUserIdIsThreadLocal() throws InterruptedException {
          Long mainThreadIdUserId = 12345L;
          SessionUserHolder.setUserId(mainThreadIdUserId);
  
          Thread testThread = new Thread(() -> {
              Long testThreadIdUserId = 67890L;
              SessionUserHolder.setUserId(testThreadIdUserId);
  
              Long retrievedUserId = SessionUserHolder.getUserId();
              assertEquals(testThreadIdUserId, retrievedUserId);
          });
  
          testThread.start();
          testThread.join();
  
          Long retrievedUserId = SessionUserHolder.getUserId();
          assertEquals(mainThreadIdUserId, retrievedUserId);
      }
  }
  