public void test_plusMinutes_zero() {

    OffsetTime base = OffsetTime.of(11, 30, 59, OFFSET_PONE);
    OffsetTime test = base.plusMinutes(0);
    assertEquals(test, base);
  }

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