LayoutTests/media/encrypted-media/encrypted-media-lifetime-mediakeysession-release.html - Issue 441063003: Run microtasks at the end of each worker task.

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Issue 441063003: Run microtasks at the end of each worker task. (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: Created 6 years, 4 months ago

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

2 <html>	2 <html>

3 <head>	3 <head>

4 <title>MediaKeySession lifetime after release()</title>	4 <title>MediaKeySession lifetime after release()</title>

5 <script src="encrypted-media-utils.js"></script>	5 <script src="encrypted-media-utils.js"></script>

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

7 <script src="../../resources/testharnessreport.js"></script>	7 <script src="../../resources/testharnessreport.js"></script>

8 </head>	8 </head>

9 <body>	9 <body>

10 <div id="log"></div>	10 <div id="log"></div>

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26	26

27 function numActiveDOMObjectsCreated()	27 function numActiveDOMObjectsCreated()

28 {	28 {

29 return window.internals.activeDOMObjectCount(document) - sta rtingActiveDOMObjectCount;	29 return window.internals.activeDOMObjectCount(document) - sta rtingActiveDOMObjectCount;

30 }	30 }

31	31

32 // Create 2 sessions.	32 // Create 2 sessions.

33 MediaKeys.create('org.w3.clearkey').then(function(result) {	33 MediaKeys.create('org.w3.clearkey').then(function(result) {

34 mediaKeys = result;	34 mediaKeys = result;

35	35

36 // Verify MediaKeys are not an ActiveDOMObject. However, the	36 // Verify MediaKeys are not an ActiveDOMObject.

37 // PromiseResolver objects used by MediaKeys/MediaKeySession	37 assert_equals(numActiveDOMObjectsCreated(), 0, 'MediaKeys.cr eate()');

38 // are ActiveDOMObjects, and they stay active until the end

39 // of the promise.

40 // Should be 1 PromiseResolver from create().

41 assert_equals(numActiveDOMObjectsCreated(), 1, 'MediaKeys.cr eate()');

42	38

43 return mediaKeys.createSession(initDataType, initData);	39 return mediaKeys.createSession(initDataType, initData);

44 }).then(function(result) {	40 }).then(function(result) {

45 mediaKeySession1 = result;	41 mediaKeySession1 = result;

46 // Should be 1 MediaKeySession + 1 PromiseResolver from	42 // Should be 1 MediaKeySession.

47 // createSession().	43 assert_equals(numActiveDOMObjectsCreated(), 1, 'mediaKeys.cr eateSession(1)');

48 assert_equals(numActiveDOMObjectsCreated(), 2, 'mediaKeys.cr eateSession(1)');

49 return mediaKeys.createSession(initDataType, initData);	44 return mediaKeys.createSession(initDataType, initData);

50 }).then(function(result) {	45 }).then(function(result) {

51 mediaKeySession2 = result;	46 mediaKeySession2 = result;

52 // Should be 2 MediaKeySessions + 1 PromiseResolver from the	47 // Should be 2 MediaKeySessions.

53 // last createSession().	48 assert_equals(numActiveDOMObjectsCreated(), 2, 'mediaKeys.cr eateSession(2)');

54 assert_equals(numActiveDOMObjectsCreated(), 3, 'mediaKeys.cr eateSession(2)');

55	49

56 // Release the sessions. Once completed, only the JS	50 // Release the sessions. Once completed, only the JS

57 // reference to them keeps them around.	51 // reference to them keeps them around.

58 return mediaKeySession1.release();	52 return mediaKeySession1.release();

59 }).then(function(result) {	53 }).then(function(result) {

60 return mediaKeySession2.release();	54 return mediaKeySession2.release();

61 }).then(function(result) {	55 }).then(function(result) {

62 // Since both sessions have been closed, dropping the	56 // Since both sessions have been closed, dropping the

63 // reference to them from JS will result in the session	57 // reference to them from JS will result in the session

64 // being garbage-collected.	58 // being garbage-collected.

65 // Should be 2 MediaKeySessions + 1 PromiseResolver from the	59 // Should be 2 MediaKeySessions.

66 // last release().	60 assert_equals(numActiveDOMObjectsCreated(), 2);

67 assert_equals(numActiveDOMObjectsCreated(), 3);

68	61

69 mediaKeySession1 = null;	62 mediaKeySession1 = null;

70 return createGCPromise();	63 return createGCPromise();

71 }).then(function(result) {	64 }).then(function(result) {

72 // Only mediaKeySession2 should remain.	65 // Only mediaKeySession2 should remain.

73 assert_equals(numActiveDOMObjectsCreated(), 1, 'mediaKeySess ion1 not collected');	66 assert_equals(numActiveDOMObjectsCreated(), 1, 'mediaKeySess ion1 not collected');

74	67

75 mediaKeySession2 = null;	68 mediaKeySession2 = null;

76 return createGCPromise();	69 return createGCPromise();

77 }).then(function(result) {	70 }).then(function(result) {

78 assert_equals(numActiveDOMObjectsCreated(), 0, 'mediaKeySess ion2 not collected');	71 assert_equals(numActiveDOMObjectsCreated(), 0, 'mediaKeySess ion2 not collected');

79 test.done();	72 test.done();

80 }).catch(function(error) {	73 }).catch(function(error) {

81 forceTestFailureFromPromise(test, error);	74 forceTestFailureFromPromise(test, error);

82 });	75 });

83 }, 'MediaKeySession lifetime after release()');	76 }, 'MediaKeySession lifetime after release()');

84 </script>	77 </script>

85 </body>	78 </body>

86 </html>	79 </html>

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