37 lines
1.3 KiB
V
37 lines
1.3 KiB
V
import time
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// NB: on CI jobs, especially msvc ones, sleep_ms may sleep for much more
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// time than you have specified. To avoid false positives from CI test
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// failures, some of the asserts will be run only if you pass `-d stopwatch`
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fn test_stopwatch_works_as_intended() {
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mut sw := time.new_stopwatch()
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// sample code that you want to measure:
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println('Hello world')
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time.sleep(1 * time.millisecond)
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//
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println('Greeting the world took: ${sw.elapsed().nanoseconds()}ns')
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assert sw.elapsed().nanoseconds() > 0
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}
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fn test_stopwatch_time_between_pause_and_start_should_be_skipped_in_elapsed() {
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println('Testing pause function')
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mut sw := time.new_stopwatch()
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time.sleep(10 * time.millisecond) // A
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eprintln('Elapsed after 10ms nap: ${sw.elapsed().milliseconds()}ms')
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assert sw.elapsed().milliseconds() >= 8 // sometimes it sleeps for 9ms on windows..
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sw.pause()
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time.sleep(10 * time.millisecond)
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eprintln('Elapsed after pause and another 10ms nap: ${sw.elapsed().milliseconds()}ms')
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assert sw.elapsed().milliseconds() >= 8
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$if stopwatch ? {
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assert sw.elapsed().milliseconds() < 20
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}
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sw.start()
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time.sleep(10 * time.millisecond) // B
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eprintln('Elapsed after resume and another 10ms nap: ${sw.elapsed().milliseconds()}ms')
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assert sw.elapsed().milliseconds() >= 18
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$if stopwatch ? {
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assert sw.elapsed().milliseconds() < 30
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}
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}
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