public void test_minusNanos() {

    OffsetDateTime base = OffsetDateTime.of(2008, 6, 30, 11, 30, 59, 0, OFFSET_PONE);
    OffsetDateTime test = base.minusNanos(1);
    assertEquals(test, OffsetDateTime.of(2008, 6, 30, 11, 30, 58, 999999999, OFFSET_PONE));
  }

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