content: // Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
  //  This source code is licensed under both the GPLv2 (found in the
  //  COPYING file in the root directory) and Apache 2.0 License
  //  (found in the LICENSE.Apache file in the root directory).
  
  package org.rocksdb;
  
  import org.junit.ClassRule;
  import org.junit.Test;
  
  import static org.assertj.core.api.Assertions.assertThat;
  
  public class RocksEnvTest {
  
    @ClassRule
    public static final RocksMemoryResource rocksMemoryResource =
        new RocksMemoryResource();
  
    @Test
    public void rocksEnv() {
      try (final Env rocksEnv = RocksEnv.getDefault()) {
        rocksEnv.setBackgroundThreads(5);
        // default rocksenv will always return zero for flush pool
        // no matter what was set via setBackgroundThreads
        assertThat(rocksEnv.getThreadPoolQueueLen(RocksEnv.FLUSH_POOL)).
            isEqualTo(0);
        rocksEnv.setBackgroundThreads(5, RocksEnv.FLUSH_POOL);
        // default rocksenv will always return zero for flush pool
        // no matter what was set via setBackgroundThreads
        assertThat(rocksEnv.getThreadPoolQueueLen(RocksEnv.FLUSH_POOL)).
            isEqualTo(0);
        rocksEnv.setBackgroundThreads(5, RocksEnv.COMPACTION_POOL);
        // default rocksenv will always return zero for compaction pool
        // no matter what was set via setBackgroundThreads
        assertThat(rocksEnv.getThreadPoolQueueLen(RocksEnv.COMPACTION_POOL)).
            isEqualTo(0);
      }
    }
  }
  