public float getMapBandwidth() {
    return mapBandwidth;
  }
@Test
  public void testSetBandwidth() {
    final DistCpOptions.Builder builder = new DistCpOptions.Builder(
        Collections.singletonList(new Path("hdfs://localhost:8020/source")),
        new Path("hdfs://localhost:8020/target/"));
    Assert.assertEquals(0, builder.build().getMapBandwidth(), DELTA);

    builder.withMapBandwidth(11);
    Assert.assertEquals(11, builder.build().getMapBandwidth(), DELTA);
  }