def test01_instant(self):
"""test01_instant()
"""
# sequ: Sequencer = Sequencer(0.1) # sequencer with an interval of .1 sec
# sequencer with an interval of 15.0 sec
sequ: Sequencer = Sequencer(5.0) # init for 5 sec delay
self.assertAlmostEqual(5.0, sequ.delayseconds)
self.assertEqual(20, len(sequ._to_do_sched))
self.assertFalse(sequ.do_it_now())
self.assertEqual(0, sequ.skipped)
initiallastsched = sequ._to_do_sched[-1]
cnt: int = 0
starttime = monotonic()
while not sequ.do_it_now():
Sleep(0.25)
self.assertEqual(0, sequ.skipped)
cnt += 1
endtime = monotonic()
toloop = endtime - starttime
self.assertAlmostEqual(10.0, round(toloop, 0))
currentlastsched = sequ._to_do_sched[-1]
delay1 = currentlastsched - initiallastsched
self.assertAlmostEqual(5.0, delay1)
self.assertTrue(38 < cnt < 41)
sched: List[float] = list(sequ._to_do_sched)
ll: List[float] = []
for i in range(1, len(sched)):
ll.append(sched[i] - sched[i - 1])
self.assertEqual(5.0, mean(ll))
sequ = Sequencer(1) # init for 1 sec delay
Sleep(20.5)
self.assertEqual(20, len(sequ._to_do_sched))
self.assertTrue(sequ.do_it_now())
self.assertEqual(20, len(sequ._to_do_sched))
self.assertEqual(11, sequ.skipped)
sequ = Sequencer(5.0) # init for 5 sec delay
waittime: float = sequ.get_nxt_wait()
Sleep(waittime - 0.5)
waittime = sequ.get_nxt_wait()
self.assertAlmostEqual(0.5, waittime, places=1)
a = 0
