third_party/WebKit/LayoutTests/virtual/threaded/fast/idle-callback/timeout.html - Issue 2964563002: Removing --disable/enable-threaded-compositing cmdline switches.

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Issue 2964563002: Removing --disable/enable-threaded-compositing cmdline switches.

Patch Set: Created 3 years, 5 months ago

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1 <!DOCTYPE html>

2 <title>window.requestIdleCallback deals with timeouts correctly</title>

3 <link rel="author" title="Ross McIlroy" href="mailto:rmcilroy@chromium.org" />

4 <link rel="help" href="http://www.w3.org/TR/requestidlecallback/"/>

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

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

7 <link rel="stylesheet" href="../../resources/testharness.css" />

8 <script>

9

10 async_test(function() {

11 // Check whether requestIdleCallback without a timeout doesn't get run when

12 // the event loop is busy.

13 var busy_raf_loop_iterations_remaining = 10; // Should take 20 * 40 = 400ms

14 var idle_callback_scheduled;

15 var idle_callback = this.step_func(function(deadline) {

16 assert_false(deadline.didTimeout, "IdleDeadline.didTimeout MUST be false if requestIdleCallback wasn't scheduled due to a timeout");

17 assert_equals(busy_raf_loop_iterations_remaining, 0, "Busy rAF loop should b e finished by the time we get scheduled");

18 this.done();

19 });

20

21 var busy_raf_loop_iterations_remaining = 10; // Should take 20 * 40 = 400ms

22 requestAnimationFrame(this.step_func(function busyRAFLoop() {

23 var start_time = performance.now();

24 if (!idle_callback_scheduled) {

25 idle_callback_scheduled = start_time;

26 requestIdleCallback(idle_callback);

27 }

28

29 // Use up the whole frame budget.

30 while (performance.now() - start_time < 40) { }

31 if (busy_raf_loop_iterations_remaining > 0) {

32 busy_raf_loop_iterations_remaining--;

33 requestAnimationFrame(busyRAFLoop);

34 }

35 }));

36 }, 'requestIdleCallback not scheduled when event loop is busy.');

37

38 async_test(function() {

39 // Check whether requestIdleCallback with a timeout works runs even when the

40 // event loop is busy.

41 var busy_raf_loop_iterations_remaining = 10; // Should take 20 * 40 = 400ms

42 var timeout = 200;

43 var idle_callback_scheduled;

44 var idle_callback = this.step_func(function(deadline) {

45 var time_delta = performance.now() - idle_callback_scheduled;

46 assert_true(time_delta >= timeout, "Should only have been run after timeout" );

47 assert_true(deadline.timeRemaining() == 0, "IdleDeadline.timeRemaining MUST be equal to zero if requestIdleCallback was scheduled due to a timeout");

48 assert_true(deadline.didTimeout, "IdleDeadline.didTimeout MUST be true if re questIdleCallback was scheduled due to a timeout");

49 assert_true(busy_raf_loop_iterations_remaining > 0, "Busy rAF loop should st ill be going");

50 this.done();

51 });

52

53 requestAnimationFrame(this.step_func(function busyRAFLoop() {

54 var start_time = performance.now();

55 if (!idle_callback_scheduled) {

56 idle_callback_scheduled = start_time;

57 requestIdleCallback(idle_callback, { timeout: timeout });

58 }

59

60 // Use up the whole frame budget.

61 while (performance.now() - start_time < 40) { }

62 if (busy_raf_loop_iterations_remaining > 0) {

63 busy_raf_loop_iterations_remaining--;

64 requestAnimationFrame(busyRAFLoop);

65 }

66 }));

67 }, 'requestIdleCallback scheduled with timeout when event loop is busy.');

68

69 </script>

70 <h1>Description</h1>

71 <p>This test validates that window.requestIdleCallback deals with timeouts corre ctly.</p>

72 <div id="log"></div>

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