public void test_toEpochSecond_beforeEpoch() {

    for (int i = 0; i < 100000; i++) {
      LocalDateTime a = LocalDateTime.of(1970, 1, 1, 0, 0).minusSeconds(i);
      assertEquals(a.toEpochSecond(ZoneOffset.UTC), -i);
    }
  }

  // -----------------------------------------------------------------------
  // compareTo()
  // -----------------------------------------------------------------------
  @Test(groups = { "tck" }