public void test_comparisons() {

    doTest_comparisons_YearMonth(YearMonth.of(-1, 1), YearMonth.of(0, 1), YearMonth.of(0, 12), YearMonth.of(1, 1),
        YearMonth.of(1, 2), YearMonth.of(1, 12), YearMonth.of(2008, 1), YearMonth.of(2008, 6), YearMonth.of(2008, 12));
  }