content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.master.file.meta;
  
  import alluxio.conf.Configuration;
  import alluxio.conf.PropertyKey;
  
  import org.junit.After;
  import org.junit.Assert;
  import org.junit.Test;
  
  import java.time.Clock;
  
  /**
   * Unit tests for {@link UfsAbsentPathCache}.
   */
  public class UfsAbsentPathCacheTest {
    /**
     * Resets the configuration.
     */
    @After
    public void after() throws Exception {
      Configuration.reloadProperties();
    }
  
    @Test
    public void defaultAsyncPathThreads() throws Exception {
      UfsAbsentPathCache cache = UfsAbsentPathCache.Factory.create(null, Clock.systemUTC());
      Assert.assertTrue(cache instanceof AsyncUfsAbsentPathCache);
    }
  
    @Test
    public void noAsyncPathThreads() throws Exception {
      Configuration.set(PropertyKey.MASTER_UFS_PATH_CACHE_THREADS, 0);
      UfsAbsentPathCache cache = UfsAbsentPathCache.Factory.create(null, Clock.systemUTC());
      Assert.assertTrue(cache instanceof NoopUfsAbsentPathCache);
    }
  
    @Test
    public void negativeAsyncPathThreads() throws Exception {
      Configuration.set(PropertyKey.MASTER_UFS_PATH_CACHE_THREADS, -1);
      UfsAbsentPathCache cache = UfsAbsentPathCache.Factory.create(null, Clock.systemUTC());
      Assert.assertTrue(cache instanceof NoopUfsAbsentPathCache);
    }
  }
  