public void testAutoIncrementStep_returnsSameInstance() {
    FakeTicker ticker = new FakeTicker();
    assertThat(ticker.setAutoIncrementStep(10, NANOSECONDS)).isSameInstanceAs(ticker);
  }

  public void testAutoIncrementStep_nanos() {
    FakeTicker ticker = new FakeTicker().setAutoIncrementStep(10, NANOSECONDS);
    assertEquals(0, ticker.read());
    assertEquals(10, ticker.read());
    assertEquals(20, ticker.read());
  }