| 1 | import time |
| 2 | |
| 3 | // Note: on CI jobs, especially msvc ones, sleep_ms may sleep for much more |
| 4 | // time than you have specified. To avoid false positives from CI test |
| 5 | // failures, some of the asserts will be run only if you pass `-d stopwatch` |
| 6 | fn test_stopwatch_works_as_intended() { |
| 7 | mut sw := time.new_stopwatch() |
| 8 | // sample code that you want to measure: |
| 9 | println('Hello world') |
| 10 | time.sleep(1 * time.millisecond) |
| 11 | |
| 12 | println('Greeting the world took: ${sw.elapsed().nanoseconds()}ns') |
| 13 | assert sw.elapsed().nanoseconds() > 0 |
| 14 | } |
| 15 | |
| 16 | fn test_stopwatch_time_between_pause_and_start_should_be_skipped_in_elapsed() { |
| 17 | println('Testing pause function') |
| 18 | mut sw := time.new_stopwatch() |
| 19 | time.sleep(10 * time.millisecond) // A |
| 20 | eprintln('Elapsed after 10ms nap: ${sw.elapsed().milliseconds()}ms') |
| 21 | assert sw.elapsed().milliseconds() >= 8 // sometimes it sleeps for 9ms on windows.. |
| 22 | sw.pause() |
| 23 | time.sleep(10 * time.millisecond) |
| 24 | eprintln('Elapsed after pause and another 10ms nap: ${sw.elapsed().milliseconds()}ms') |
| 25 | assert sw.elapsed().milliseconds() >= 8 |
| 26 | $if stopwatch ? { |
| 27 | assert sw.elapsed().milliseconds() < 20 |
| 28 | } |
| 29 | sw.start() |
| 30 | time.sleep(10 * time.millisecond) // B |
| 31 | eprintln('Elapsed after resume and another 10ms nap: ${sw.elapsed().milliseconds()}ms') |
| 32 | assert sw.elapsed().milliseconds() >= 18 |
| 33 | $if stopwatch ? { |
| 34 | assert sw.elapsed().milliseconds() < 30 |
| 35 | } |
| 36 | } |
| 37 | |