src/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                 MediaKeys.create('org.w3.clearkey').then(function(result) {
  16                     // Do nothing with the created object
  17                 }).then(function(result) {
  18                     // No way to verify that MediaKeys object is actually
  19                     // collected, but make sure it doesn't crash.
  20                     return createGCPromise();
  21                 }).then(function(result) {
  22                     test.done();
  23                 }).catch(function(error) {
  24                     forceTestFailureFromPromise(test, error);
  25                 });
  26             }, 'Creating and destroying MediaKeys does not crash');
  27
  28             async_test(function(test)
  29             {
  30                 var mediaKeys;
  31                 MediaKeys.create('org.w3.clearkey').then(function(result) {
  32                     mediaKeys = result;
  33                     return createGCPromise();
  34                 }).then(function(result) {
  35                     // Check that the object still exists.
  36                     assert_equals(mediaKeys.keySystem, 'org.w3.clearkey');
  37                     mediaKeys = null;
  38
  39                     // Now that the reference is dropped, it should be
  40                     // collected. No way to verify that it is actually
  41                     // collected, but make sure it doesn't crash.
  42                     return createGCPromise();
  43                 }).then(function(result) {
  44                     test.done();
  45                 }).catch(function(error) {
  46                     forceTestFailureFromPromise(test, error);
  47                 });
  48             }, 'MediaKeys is not collected as long as we have a reference');
  49         </script>
  50     </body>
  51 </html>