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.master.journal.checkpoint.CheckpointInputStream;
  
  import org.junit.Assert;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.rules.TemporaryFolder;
  import org.junit.runner.RunWith;
  import org.junit.runners.Parameterized;
  
  import java.io.File;
  import java.io.IOException;
  import java.io.OutputStream;
  import java.nio.file.Files;
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.Collection;
  import java.util.List;
  
  @RunWith(Parameterized.class)
  public class CheckpointedIdHashSetTest {
    @Parameterized.Parameters
    public static Collection<CheckpointedIdHashSet> data() {
      return Arrays.asList(new PinnedInodeFileIds(), new ReplicationLimitedFileIds(),
          new ToBePersistedFileIds());
    }
  
    @Parameterized.Parameter
    public CheckpointedIdHashSet mIdHashSet;
  
    @Rule
    public TemporaryFolder mFolder = new TemporaryFolder();
  
    @Test
    public void test() throws IOException {
      for (long i = 0L; i < 1_000_000L; i += 5762L) {
        mIdHashSet.add(i);
      }
      List<Long> copyList = new ArrayList<>(mIdHashSet);
      File file = mFolder.newFile();
      try (OutputStream outputStream = Files.newOutputStream(file.toPath())) {
        mIdHashSet.writeToCheckpoint(outputStream);
      }
      mIdHashSet.clear();
      try (CheckpointInputStream inputStream =
               new CheckpointInputStream(Files.newInputStream(file.toPath()))) {
        mIdHashSet.restoreFromCheckpoint(inputStream);
      }
      Assert.assertTrue(mIdHashSet.containsAll(copyList));
    }
  }
  