(test-assert (not (schedule-empty? sched)))
(test-equal (length (schedule-segments sched)) 1)
(test-equal (time-segment-time (car (schedule-segments sched)))
(test-assert (not (schedule-empty? sched)))
(test-equal (length (schedule-segments sched)) 1)
(test-equal (time-segment-time (car (schedule-segments sched)))