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Issue 2618603002: [eme] Convert lifetime tests to promise_tests (Closed)
Patch Set: move to utils Created 3 years, 11 months ago
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1 <!DOCTYPE html> 1 <!DOCTYPE html>
2 <html> 2 <html>
3 <head> 3 <head>
4 <title>Test multiple MediaKeys lifetimes</title> 4 <title>Test multiple MediaKeys lifetimes</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 // For this test, create several MediaKeys and verify lifetime. 11 // For this test, create several MediaKeys and verify lifetime.
12 async_test(function(test) 12 promise_test(function(test)
13 { 13 {
14 gc(); 14 var mediaKeys1;
15 var mediaKeys; 15 var mediaKeys2;
16 var startingMediaKeysCount = window.internals.mediaKeysCount(); 16 var mediaKeys3;
17 17 var mediaKeys4;
18 function numMediaKeysCreated() 18 var mediaKeys5;
19 {
20 return window.internals.mediaKeysCount() - startingMediaKeys Count;
21 }
22 19
23 // Create a MediaKeys object. Returns a promise that resolves 20 // Create a MediaKeys object. Returns a promise that resolves
24 // with the new MediaKeys object. 21 // with the new MediaKeys object.
25 function createMediaKeys() 22 function createMediaKeys()
26 { 23 {
27 return navigator.requestMediaKeySystemAccess('org.w3.clearke y', getSimpleConfiguration()).then(function(access) { 24 return navigator.requestMediaKeySystemAccess('org.w3.clearke y', getSimpleConfiguration()).then(function(access) {
28 return access.createMediaKeys(); 25 return access.createMediaKeys();
29 }).then(function(mediaKeys) {
30 return mediaKeys;
31 }); 26 });
32 } 27 }
33 28
34 // Create a few MediaKeys objects. Only keep a reference to the 29 // Create a few MediaKeys objects. Keep references to them,
35 // last one created. 30 // to avoid issues if gc() runs.
36 createMediaKeys().then(function(result) { 31 // Even though there should be no existing objects, start by
37 assert_equals(numMediaKeysCreated(), 1); 32 // running gc() and verifying that none exist. This also
33 // allows the failures to be reported from inside a promise
34 // so that the test fails properly.
35 return createGCPromise().then(function() {
36 verifyMediaKeyAndMediaKeySessionCount(0, 0, 'After initial g c()');
38 37
39 return createMediaKeys(); 38 return createMediaKeys();
40 }).then(function(result) { 39 }).then(function(result) {
41 assert_equals(numMediaKeysCreated(), 2); 40 assert_not_equals(result, null);
41 mediaKeys1 = result;
42 verifyMediaKeyAndMediaKeySessionCount(1, 0, 'Create first Me diaKeys');
42 43
43 return createMediaKeys(); 44 return createMediaKeys();
44 }).then(function(result) { 45 }).then(function(result) {
45 assert_equals(numMediaKeysCreated(), 3); 46 assert_not_equals(result, null);
47 mediaKeys2 = result;
48 verifyMediaKeyAndMediaKeySessionCount(2, 0, 'Create second M ediaKeys');
46 49
47 return createMediaKeys(); 50 return createMediaKeys();
48 }).then(function(result) { 51 }).then(function(result) {
49 assert_equals(numMediaKeysCreated(), 4); 52 assert_not_equals(result, null);
53 mediaKeys3 = result;
54 verifyMediaKeyAndMediaKeySessionCount(3, 0, 'Create third Me diaKeys');
50 55
51 return createMediaKeys(); 56 return createMediaKeys();
52 }).then(function(result) { 57 }).then(function(result) {
53 assert_equals(numMediaKeysCreated(), 5); 58 assert_not_equals(result, null);
59 mediaKeys4 = result;
60 verifyMediaKeyAndMediaKeySessionCount(4, 0, 'Create fourth M ediaKeys');
54 61
55 // |mediaKeys| refers to the most recently created MediaKeys 62 return createMediaKeys();
56 // object. 63 }).then(function(result) {
57 mediaKeys = result; 64 assert_not_equals(result, null);
65 mediaKeys5 = result;
66 verifyMediaKeyAndMediaKeySessionCount(5, 0, 'Create fifth Me diaKeys');
58 67
59 // In order for the MediaKey objects to be garbage 68 // In order for the MediaKey objects to be garbage
60 // collected, it needs time to process any pending events. 69 // collected, it needs time to process any pending events.
61 return delayToAllowEventProcessingPromise(); 70 return delayToAllowEventProcessingPromise();
62 }).then(function(result) { 71 }).then(function() {
63 assert_equals(numMediaKeysCreated(), 5); 72 verifyMediaKeyAndMediaKeySessionCount(5, 0, 'All alive');
64 73
65 // As we only have a reference (|mediaKeys|) to the last 74 // Now run garbage collection. Since we have references to
66 // created MediaKeys object, the other 4 MediaKeys objects 75 // all 5 MediaKeys, none will be collected.
67 // are available to be garbage collected.
68 return createGCPromise(); 76 return createGCPromise();
69 }).then(function(result) { 77 }).then(function() {
70 assert_equals(numMediaKeysCreated(), 1); 78 verifyMediaKeyAndMediaKeySessionCount(5, 0, 'All still alive ');
71 assert_equals(typeof mediaKeys.createSession, 'function'); 79
80 // Drop references to 4 of the MediaKeys. As we will only
81 // have a reference to the last created MediaKeys object,
82 // the other 4 MediaKeys objects are available to be
83 // garbage collected.
84 mediaKeys1 = null;
85 mediaKeys2 = null;
86 mediaKeys3 = null;
87 mediaKeys4 = null;
88 return createGCPromise();
89 }).then(function() {
90 verifyMediaKeyAndMediaKeySessionCount(1, 0, 'Only 1 left');
72 91
73 // Release the last MediaKeys object created. 92 // Release the last MediaKeys object created.
74 mediaKeys = null; 93 mediaKeys5 = null;
75 94
76 // Run gc() again to reclaim the remaining MediaKeys object. 95 // Run gc() again to reclaim the remaining MediaKeys object.
77 return createGCPromise(); 96 return createGCPromise();
78 }).then(function(result) { 97 }).then(function() {
79 assert_equals(numMediaKeysCreated(), 0); 98 verifyMediaKeyAndMediaKeySessionCount(0, 0, 'After final gc( )');
80 test.done();
81 }).catch(function(error) {
82 forceTestFailureFromPromise(test, error);
83 }); 99 });
84 }, 'Multiple MediaKeys lifetime'); 100 }, 'Multiple MediaKeys lifetime');
85 </script> 101 </script>
86 </body> 102 </body>
87 </html> 103 </html>
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