third_party/WebKit/LayoutTests/external/wpt/dom/events/Event-timestamp-safe-resolution.html - Issue 2744553007: Upstream high resolution event timestamp tests to WPT

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Issue 2744553007: Upstream high resolution event timestamp tests to WPT (Closed)

Patch Set: Make WPT lint happy Created 3 years, 5 months ago

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1 <!DOCTYPE html>	1 <!DOCTYPE html>

2	2

3 <script src="../../../resources/testharness.js"></script>	3 <script src="/resources/testharness.js"></script>

4 <script src="../../../resources/testharnessreport.js"></script>	4 <script src="/resources/testharnessreport.js"></script>

5 <script type="text/javascript">	5 <script type="text/javascript">

6 'use strict';	6 'use strict';

7	7

8 test(function() {	8 test(function() {

9 let e1 = new MouseEvent('test1');	9 let e1 = new MouseEvent('test1');

10 let e2 = new MouseEvent('test2');	10 let e2 = new MouseEvent('test2');

11	11

12 while (e1.timeStamp == e2.timeStamp)	12 while (e1.timeStamp == e2.timeStamp)

13 e2 = new MouseEvent('test2');	13 e2 = new MouseEvent('test2');

14	14

15 let expectedResolutionMilliseconds = 0.005;	15 let expectedResolutionMilliseconds = 0.005;

16 let integerMultipleOfResolution = (e2.timeStamp - e1.timeStamp) / expectedRe solutionMilliseconds;	16 let integerMultipleOfResolution = (e2.timeStamp - e1.timeStamp) / expectedRe solutionMilliseconds;

17 let shouldBeNearZeroOrOne = integerMultipleOfResolution % 1;	17 let shouldBeNearZeroOrOne = integerMultipleOfResolution % 1;

18 assert_true(shouldBeNearZeroOrOne < 1e-10 \|\| Math.abs(shouldBeNearZeroOrOne - 1) < 1e-10);	18 assert_true(shouldBeNearZeroOrOne < 1e-10 \|\| Math.abs(shouldBeNearZeroOrOne - 1) < 1e-10);

19 }, 'Event timestamp should not have a resolution better that 5 microseconds');	19 }, 'Event timestamp should not have a resolution better that 5 microseconds');

20 </script>	20 </script>

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