third_party/WebKit/LayoutTests/media/encrypted-media/encrypted-media-lifetime-mediakeys.html

   1 <!DOCTYPE html>
   2 <html>
   3     <head>
   4         <title>Test MediaKeys lifetime</title>
   5         <script src="encrypted-media-utils.js"></script>
   6         <script src="../../resources/testharness.js"></script>
   7         <script src="../../resources/testharnessreport.js"></script>
   8     </head>
   9     <body>
  10         <div id="log"></div>
  11         <script>
  12             async_test(function(test)
  13             {
  14                 // Create a MediaKeys object and free immediately.
  15                 navigator.requestMediaKeySystemAccess('org.w3.clearkey', [{}]).then(function(access) {
  16                     return access.createMediaKeys();
  17                 }).then(function(result) {
  18                     // Do nothing with the created object
  19                 }).then(function(result) {
  20                     // No way to verify that MediaKeys object is actually
  21                     // collected, but make sure it doesn't crash.
  22                     return createGCPromise();
  23                 }).then(function(result) {
  24                     test.done();
  25                 }).catch(function(error) {
  26                     forceTestFailureFromPromise(test, error);
  27                 });
  28             }, 'Creating and destroying MediaKeys does not crash');
  29
  30             async_test(function(test)
  31             {
  32                 var mediaKeys;
  33                 navigator.requestMediaKeySystemAccess('org.w3.clearkey', [{}]).then(function(access) {
  34                     return access.createMediaKeys();
  35                 }).then(function(result) {
  36                     mediaKeys = result;
  37                     return createGCPromise();
  38                 }).then(function(result) {
  39                     // Check that the object still exists.
  40                     assert_equals(typeof mediaKeys.createSession, 'function');
  41                     mediaKeys = null;
  42
  43                     // Now that the reference is dropped, it should be
  44                     // collected. No way to verify that it is actually
  45                     // collected, but make sure it doesn't crash.
  46                     return createGCPromise();
  47                 }).then(function(result) {
  48                     test.done();
  49                 }).catch(function(error) {
  50                     forceTestFailureFromPromise(test, error);
  51                 });
  52             }, 'MediaKeys is not collected as long as we have a reference');
  53         </script>
  54     </body>
  55 </html>