public void test_plus_PlusAdjuster() {

    MockSimplePeriod period = MockSimplePeriod.of(7, ChronoUnit.MINUTES);
    OffsetTime t = this.TEST_11_30_59_500_PONE.plus(period);
    assertEquals(t, OffsetTime.of(11, 37, 59, 500, OFFSET_PONE));
  }

  @Test(groups = { "tck" }