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Add more unit tests for isc_timer

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Add more tests that deal with rescheduling and restarting the existing
timer and measure that the timer fired at the expected intervals.
This commit is contained in:
Ondřej Surý 2022-09-22 09:43:19 +02:00
parent 6797ca49cf
commit 8d7f173e7c
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GPG Key ID: 2820F37E873DEA41
1 changed files with 123 additions and 0 deletions
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tests/isc/timer_test.c
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@ -411,12 +411,135 @@ ISC_LOOP_TEST_SETUP_TEARDOWN_IMPL(purge) {
isc_timer_start(oncetimer, isc_timertype_once, &interval);
}
/*
* Set of tests that check whether the rescheduling works as expected.
*/
uint64_t timer_start;
uint64_t timer_stop;
uint64_t timer_expect;
uint64_t timer_ticks;
isc_interval_t timer_interval;
isc_timertype_t timer_type;
#define NS_PER_S 1000000000 /*%< Nanoseconds per second. */
ISC_LOOP_TEARDOWN_IMPL(timer_expect) {
uint64_t diff = (timer_stop - timer_start) / 1000000000;
assert_true(diff == timer_expect);
}
static void
timer_event(void *arg __attribute__((__unused__))) {
if (--timer_ticks == 0) {
isc_timer_destroy(&timer);
isc_loopmgr_shutdown(loopmgr);
timer_stop = uv_hrtime();
} else {
isc_timer_start(timer, timer_type, &timer_interval);
}
}
ISC_LOOP_SETUP_IMPL(reschedule_up) {
timer_start = uv_hrtime();
timer_expect = 1;
timer_ticks = 1;
timer_type = isc_timertype_once;
}
ISC_LOOP_TEST_CUSTOM_IMPL(reschedule_up, setup_loop_reschedule_up,
teardown_loop_timer_expect) {
isc_timer_create(mainloop, timer_event, NULL, &timer);
/* Schedule the timer to fire immediately */
isc_interval_set(&timer_interval, 0, 0);
isc_timer_start(timer, timer_type, &timer_interval);
/* And then reschedule it to 2 seconds */
isc_interval_set(&timer_interval, 1, 0);
isc_timer_start(timer, timer_type, &timer_interval);
}
ISC_LOOP_SETUP_IMPL(reschedule_down) {
timer_start = uv_hrtime();
timer_expect = 0;
timer_ticks = 1;
timer_type = isc_timertype_once;
}
ISC_LOOP_TEST_CUSTOM_IMPL(reschedule_down, setup_loop_reschedule_down,
teardown_loop_timer_expect) {
isc_timer_create(mainloop, timer_event, NULL, &timer);
/* Schedule the timer to fire at 1 second */
isc_interval_set(&timer_interval, 10, 0);
isc_timer_start(timer, timer_type, &timer_interval);
/* And then reschedule it fire immediately */
isc_interval_set(&timer_interval, 0, 0);
isc_timer_start(timer, timer_type, &timer_interval);
}
ISC_LOOP_SETUP_IMPL(reschedule_from_callback) {
timer_start = uv_hrtime();
timer_expect = 1;
timer_ticks = 2;
timer_type = isc_timertype_once;
}
ISC_LOOP_TEST_CUSTOM_IMPL(reschedule_from_callback,
setup_loop_reschedule_from_callback,
teardown_loop_timer_expect) {
isc_timer_create(mainloop, timer_event, NULL, &timer);
isc_interval_set(&timer_interval, 0, NS_PER_S / 2);
isc_timer_start(timer, timer_type, &timer_interval);
}
ISC_LOOP_SETUP_IMPL(zero) {
timer_start = uv_hrtime();
timer_expect = 0;
timer_ticks = 1;
timer_type = isc_timertype_once;
}
ISC_LOOP_TEST_CUSTOM_IMPL(zero, setup_loop_zero, teardown_loop_timer_expect) {
isc_timer_create(mainloop, timer_event, NULL, &timer);
/* Schedule the timer to fire immediately (in the next event loop) */
isc_interval_set(&timer_interval, 0, 0);
isc_timer_start(timer, timer_type, &timer_interval);
}
ISC_LOOP_SETUP_IMPL(reschedule_ticker) {
timer_start = uv_hrtime();
timer_expect = 1;
timer_ticks = 5;
timer_type = isc_timertype_ticker;
}
ISC_LOOP_TEST_CUSTOM_IMPL(reschedule_ticker, setup_loop_reschedule_ticker,
teardown_loop_timer_expect) {
isc_timer_create(mainloop, timer_event, NULL, &timer);
/* Schedule the timer to fire immediately (in the next event loop) */
isc_interval_set(&timer_interval, 0, 0);
isc_timer_start(timer, timer_type, &timer_interval);
/* Then fire every 1/4 second */
isc_interval_set(&timer_interval, 0, NS_PER_S / 4);
}
ISC_TEST_LIST_START
ISC_TEST_ENTRY_CUSTOM(ticker, setup_loopmgr, teardown_loopmgr)
ISC_TEST_ENTRY_CUSTOM(once_idle, setup_loopmgr, teardown_loopmgr)
ISC_TEST_ENTRY_CUSTOM(reset, setup_loopmgr, teardown_loopmgr)
ISC_TEST_ENTRY_CUSTOM(purge, setup_loopmgr, teardown_loopmgr)
ISC_TEST_ENTRY_CUSTOM(reschedule_up, setup_loopmgr, teardown_loopmgr)
ISC_TEST_ENTRY_CUSTOM(reschedule_down, setup_loopmgr, teardown_loopmgr)
ISC_TEST_ENTRY_CUSTOM(reschedule_from_callback, setup_loopmgr, teardown_loopmgr)
ISC_TEST_ENTRY_CUSTOM(zero, setup_loopmgr, teardown_loopmgr)
ISC_TEST_ENTRY_CUSTOM(reschedule_ticker, setup_loopmgr, teardown_loopmgr)
ISC_TEST_LIST_END