@Override
  public String toString() {
    return getFormattedText() + ": duration " + super.toString();
  }
@Test
  public void testDurationInfoCreation() throws Exception {
    DurationInfo info = new DurationInfo(log, "test");
    Assert.assertTrue(info.value() >= 0);
    Thread.sleep(1000);
    info.finished();
    Assert.assertTrue(info.value() > 0);

    info = new DurationInfo(log, true, "test format %s", "value");
    Assert.assertEquals("test format value: duration 0:00.000s",
        info.toString());

    info = new DurationInfo(log, false, "test format %s", "value");
    Assert.assertEquals("test format value: duration 0:00.000s",
        info.toString());
  }