assertEquals(2, in.skipBytes(2));
    assertEquals(0, in.skipBytes(1));
  }

  public void testNewDataInput_BAIS() {
    ByteArrayInputStream bais = new ByteArrayInputStream(new byte[] {0x12, 0x34, 0x56, 0x78});
    ByteArrayDataInput in = ByteStreams.newDataInput(bais);
    assertEquals(0x12345678, in.readInt());
  }

  public void testNewDataOutput_empty() {

    assertEquals(2, in.skipBytes(2));
    assertEquals(0, in.skipBytes(1));
  }

  public void testNewDataInput_BAIS() {
    ByteArrayInputStream bais = new ByteArrayInputStream(new byte[] {0x12, 0x34, 0x56, 0x78});
    ByteArrayDataInput in = ByteStreams.newDataInput(bais);
    assertEquals(0x12345678, in.readInt());
  }

  public void testNewDataOutput_empty() {

   * a bug in the class under test) but that we time out fairly promptly when the method is expected
   * to hang (possibly too quickly, but too-quick failures should be very unlikely, given that we
   * used to bail after 20ms during the expected-successful tests, and there we saw a failure rate
   * of ~1/5000, meaning that the other thread's get() call nearly always completes within 20ms if
   * it's going to complete at all).
   *

   * a bug in the class under test) but that we time out fairly promptly when the method is expected
   * to hang (possibly too quickly, but too-quick failures should be very unlikely, given that we
   * used to bail after 20ms during the expected-successful tests, and there we saw a failure rate
   * of ~1/5000, meaning that the other thread's get() call nearly always completes within 20ms if
   * it's going to complete at all).
   *