assertEquals(0, ticker.read());
    assertEquals(3000000000L, ticker.read());
    assertEquals(6000000000L, ticker.read());
  }

  @GwtIncompatible // java.time.Duration
  public void testAutoIncrementStep_duration() {
    FakeTicker ticker = new FakeTicker().setAutoIncrementStep(Duration.ofMillis(1));
    assertEquals(0, ticker.read());
    assertEquals(1000000, ticker.read());
    assertEquals(2000000, ticker.read());
  }