@Test
    void monthly_trigger_days() {
        TriggerManagerVo vo = new TriggerManagerVo();
        vo.setType("monthly");
        vo.setValue("1");
        vo.setHour("01");
        vo.setMinute("1");

        TriggerResult realTrigger = new TriggerResult(vo);

        assertEquals(LocalDateTime.parse("2024-06-01T01:01:00"), realTrigger.getFirstFireTime());
        assertEquals(LocalDateTime.parse("2024-07-01T01:01:00"), realTrigger.getSecondFireTime());
    }

This test will fail next month because quartz will get different System Time next month.
I try to mock System Time but fail.
Now I dynamic change my assertion like

 LocalDateTime firstDayOfMonth = todayStart.withDayOfMonth(1);
        assertEquals(firstDayOfMonth.plusMonths(1), realTrigger.getFirstFireTime());
        assertEquals(firstDayOfMonth.plusMonths(2), realTrigger.getSecondFireTime());

I still want to know how to control time on quartz test.

Thanks