37 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			V
		
	
	
			
		
		
	
	
			37 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			V
		
	
	
| import time
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| 
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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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| 
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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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