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| 1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
| 2 <html> | 2 <html> |
| 3 <head> | 3 <head> |
| 4 <title>Test MediaKeys lifetime when adding a session</title> | 4 <title>Test MediaKeys lifetime when adding a session</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 <script> | 10 <script> |
| 11 // MediaKeySessions remain as long as: | 11 // MediaKeySessions remain as long as: |
| 12 // JavaScript has a reference to it | 12 // JavaScript has a reference to it |
| 13 // OR (MediaKeys is around | 13 // OR (MediaKeys is around |
| 14 // AND the session has not received a close() event) | 14 // AND the session has not received a close() event) |
| 15 // In the tests below, we do not close any session nor keep a | 15 // In the tests below, we do not close any session nor keep a |
| 16 // Javascript reference to any session, so MediaKeySessions remain | 16 // Javascript reference to any session, so MediaKeySessions remain |
| 17 // as long as the associated MediaKeys object is around. | 17 // as long as the associated MediaKeys object is around. |
| 18 | 18 |
| 19 // For this test, create a MediaKeySession and verify lifetime. | 19 // For this test, create a MediaKeySession and verify lifetime. |
| 20 async_test(function(test) | 20 async_test(function(test) |
| 21 { | 21 { |
| 22 var initDataType; | 22 var initDataType; |
| 23 var initData; | 23 var initData; |
| 24 var mediaKeys; | 24 var mediaKeys; |
| 25 var startingActiveDOMObjectCount = window.internals.activeDOMObj
ectCount(document); | 25 var startingSuspendableObjectCount = window.internals.suspendabl
eObjectCount(document); |
| 26 | 26 |
| 27 function numActiveDOMObjectsCreated() | 27 function numSuspendableObjectsCreated() |
| 28 { | 28 { |
| 29 return window.internals.activeDOMObjectCount(document) - sta
rtingActiveDOMObjectCount; | 29 return window.internals.suspendableObjectCount(document) - s
tartingSuspendableObjectCount; |
| 30 } | 30 } |
| 31 | 31 |
| 32 // Create a MediaKeys object with a session. | 32 // Create a MediaKeys object with a session. |
| 33 navigator.requestMediaKeySystemAccess('org.w3.clearkey', getSimp
leConfiguration()).then(function(access) { | 33 navigator.requestMediaKeySystemAccess('org.w3.clearkey', getSimp
leConfiguration()).then(function(access) { |
| 34 initDataType = access.getConfiguration().initDataTypes[0]; | 34 initDataType = access.getConfiguration().initDataTypes[0]; |
| 35 initData = getInitData(initDataType); | 35 initData = getInitData(initDataType); |
| 36 return access.createMediaKeys(); | 36 return access.createMediaKeys(); |
| 37 }).then(function(result) { | 37 }).then(function(result) { |
| 38 mediaKeys = result; | 38 mediaKeys = result; |
| 39 | 39 |
| 40 // Verify MediaKeys is an ActiveDOMObject. | 40 // Verify MediaKeys is an SuspendableObject. |
| 41 // In non-Oilpan, numActiveDOMObjectsCreate() == 1. | 41 // In non-Oilpan, numSuspendableObjectsCreate() == 1. |
| 42 // In Oilpan, numActiveDOMObjectsCreate() <= 4. | 42 // In Oilpan, numSuspendableObjectsCreate() <= 4. |
| 43 // (1 MediaKeys, | 43 // (1 MediaKeys, |
| 44 // 1 MediaKeysInitializer and | 44 // 1 MediaKeysInitializer and |
| 45 // 1 MediaKeySystemAccessInitializer (navigator.requestMedi
aKeySystemAccess() use above), | 45 // 1 MediaKeySystemAccessInitializer (navigator.requestMedi
aKeySystemAccess() use above), |
| 46 // 1 MediaKeySystemAccessInitializer (isInitDataSupported()
(via getSupportedInitDataType()))) | 46 // 1 MediaKeySystemAccessInitializer (isInitDataSupported()
(via getSupportedInitDataType()))) |
| 47 assert_between_inclusive(numActiveDOMObjectsCreated(), 1, 4,
'MediaKeys.create()'); | 47 assert_between_inclusive(numSuspendableObjectsCreated(), 1,
4, 'MediaKeys.create()'); |
| 48 | 48 |
| 49 var mediaKeySession = mediaKeys.createSession(); | 49 var mediaKeySession = mediaKeys.createSession(); |
| 50 return mediaKeySession.generateRequest(initDataType, initDat
a); | 50 return mediaKeySession.generateRequest(initDataType, initDat
a); |
| 51 }).then(function() { | 51 }).then(function() { |
| 52 // Should be 1 MediaKeys + 1 MediaKeySession. | 52 // Should be 1 MediaKeys + 1 MediaKeySession. |
| 53 // In non-Oilpan, numActiveDOMObjectsCreate() == 2. | 53 // In non-Oilpan, numSuspendableObjectsCreate() == 2. |
| 54 // In Oilpan, numActiveDOMObjectsCreate() <= 6. | 54 // In Oilpan, numSuspendableObjectsCreate() <= 6. |
| 55 // (1 MediaKeys, | 55 // (1 MediaKeys, |
| 56 // 1 MediaKeysInitializer and | 56 // 1 MediaKeysInitializer and |
| 57 // 2 MediaKeySystemAccessInitializer, | 57 // 2 MediaKeySystemAccessInitializer, |
| 58 // 1 ContentDecryptionModuleResultPromise and | 58 // 1 ContentDecryptionModuleResultPromise and |
| 59 // 1 MediaKeySession). | 59 // 1 MediaKeySession). |
| 60 assert_between_inclusive(numActiveDOMObjectsCreated(), 2, 6,
'MediaKeys.createSession()'); | 60 assert_between_inclusive(numSuspendableObjectsCreated(), 2,
6, 'MediaKeys.createSession()'); |
| 61 | 61 |
| 62 // Run gc(), should not affect MediaKeys object nor the | 62 // Run gc(), should not affect MediaKeys object nor the |
| 63 // session since we still have a reference to it. | 63 // session since we still have a reference to it. |
| 64 | 64 |
| 65 // When enabling oilpan GC, the in-active | 65 // When enabling oilpan GC, the in-active |
| 66 // ScriptPromiseResolvers will be destroyed. | 66 // ScriptPromiseResolvers will be destroyed. |
| 67 return createGCPromise(); | 67 return createGCPromise(); |
| 68 }).then(function(result) { | 68 }).then(function(result) { |
| 69 assert_equals(typeof mediaKeys.createSession, 'function'); | 69 assert_equals(typeof mediaKeys.createSession, 'function'); |
| 70 | 70 |
| 71 // MediaKeys + MediaKeySessions should remain. | 71 // MediaKeys + MediaKeySessions should remain. |
| 72 // In non-Oilpan, there is also something from createGCPromi
se(). | 72 // In non-Oilpan, there is also something from createGCPromi
se(). |
| 73 assert_between_inclusive(numActiveDOMObjectsCreated(), 2, 3,
'After gc()'); | 73 assert_between_inclusive(numSuspendableObjectsCreated(), 2,
3, 'After gc()'); |
| 74 | 74 |
| 75 // Drop reference to the MediaKeys object and run gc() | 75 // Drop reference to the MediaKeys object and run gc() |
| 76 // again. Object should be collected this time. Since | 76 // again. Object should be collected this time. Since |
| 77 // MediaKeySessions remain alive as long as MediaKeys is | 77 // MediaKeySessions remain alive as long as MediaKeys is |
| 78 // around, it is possible that gc() checks the | 78 // around, it is possible that gc() checks the |
| 79 // MediaKeySession object first, and doesn't collect it | 79 // MediaKeySession object first, and doesn't collect it |
| 80 // since MediaKeys hasn't been collected yet. Thus run gc() | 80 // since MediaKeys hasn't been collected yet. Thus run gc() |
| 81 // twice, to ensure that the unreferenced MediaKeySession | 81 // twice, to ensure that the unreferenced MediaKeySession |
| 82 // object get collected. | 82 // object get collected. |
| 83 mediaKeys = null; | 83 mediaKeys = null; |
| 84 return createGCPromise(); | 84 return createGCPromise(); |
| 85 }).then(function(result) { | 85 }).then(function(result) { |
| 86 return createGCPromise(); | 86 return createGCPromise(); |
| 87 }).then(function(result) { | 87 }).then(function(result) { |
| 88 // No MediaKeySessions should remain. | 88 // No MediaKeySessions should remain. |
| 89 // In non-Oilpan, there is also something from createGCPromi
se(). | 89 // In non-Oilpan, there is also something from createGCPromi
se(). |
| 90 assert_between_inclusive(numActiveDOMObjectsCreated(), 0, 1,
'After final gc()'); | 90 assert_between_inclusive(numSuspendableObjectsCreated(), 0,
1, 'After final gc()'); |
| 91 | 91 |
| 92 test.done(); | 92 test.done(); |
| 93 }).catch(function(error) { | 93 }).catch(function(error) { |
| 94 forceTestFailureFromPromise(test, error); | 94 forceTestFailureFromPromise(test, error); |
| 95 }); | 95 }); |
| 96 }, 'MediaKeys lifetime with session'); | 96 }, 'MediaKeys lifetime with session'); |
| 97 </script> | 97 </script> |
| 98 </body> | 98 </body> |
| 99 </html> | 99 </html> |
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