@Test
  @SuppressWarnings("deprecation")
  public void testToClientOptions() throws UnknownHostException {
    MongoOptions options = new MongoOptions();
    options.description = "my client";
    options.fsync = true;
    options.readPreference = ReadPreference.secondary();
    options.requiredReplicaSetName = "test";
    options.cursorFinalizerEnabled = false;
    options.alwaysUseMBeans = true;
    options.connectTimeout = 100;
    options.maxWaitTime = 500;
    options.socketKeepAlive = true;
    options.threadsAllowedToBlockForConnectionMultiplier = 10;

    MongoClientOptions clientOptions = options.toClientOptions();

    assertEquals(options.requiredReplicaSetName, clientOptions.getRequiredReplicaSetName());
    assertEquals(options.description, clientOptions.getDescription());
    assertEquals(WriteConcern.ACKNOWLEDGED.withFsync(true), clientOptions.getWriteConcern());
    assertEquals(0, clientOptions.getMinConnectionsPerHost());
    assertEquals(10, clientOptions.getConnectionsPerHost());
    assertEquals(100, clientOptions.getConnectTimeout());
    assertEquals(500, clientOptions.getMaxWaitTime());
    assertEquals(ReadPreference.secondary(), clientOptions.getReadPreference());
    assertEquals(10, clientOptions.getThreadsAllowedToBlockForConnectionMultiplier());
    assertTrue(clientOptions.isSocketKeepAlive());
    assertFalse(clientOptions.isSslEnabled());
    assertEquals(options.dbDecoderFactory, clientOptions.getDbDecoderFactory());
    assertEquals(options.dbEncoderFactory, clientOptions.getDbEncoderFactory());
    assertEquals(15, clientOptions.getLocalThreshold());
    assertTrue(clientOptions.isAlwaysUseMBeans());
    assertFalse(clientOptions.isCursorFinalizerEnabled());
  }