public void test_toInstant_P0100(LocalDateTime ldt, long expectedEpSec, int expectedNos) {

    ZonedDateTime dt = ldt.atZone(ZONE_0100);
    Instant test = dt.toInstant();
    assertEquals(test.getEpochSecond(), expectedEpSec - 3600);
    assertEquals(test.getNano(), expectedNos);
  }

  @Test(groups = { "tck" }