public void test_toEpochSecond_afterEpoch() {

    for (int i = -5; i < 5; i++) {
      ZoneOffset offset = ZoneOffset.ofHours(i);
      for (int j = 0; j < 100000; j++) {
        LocalDateTime a = LocalDateTime.of(1970, 1, 1, 0, 0).plusSeconds(j);
        assertEquals(a.toEpochSecond(offset), j - i * 3600);
      }
    }
  }

  @Test(groups = { "tck" }