tor-browser

The Tor Browser
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mediasource-worker-must-fail-if-unsupported.js (960B)

      1 importScripts("/resources/testharness.js");
      2 
      3 test(t => {
      4  // The Window test html conditionally fetches and runs these tests only if the
      5  // implementation does not have a true-valued static
      6  // canConstructInDedicatedWorker property on MediaSource in the Window
      7  // context. So, the implementation must agree on lack of support here in the
      8  // dedicated worker context.
      9 
     10  // Ensure we're executing in a dedicated worker context.
     11  assert_true(self instanceof DedicatedWorkerGlobalScope, "self instanceof DedicatedWorkerGlobalScope");
     12  assert_true(self.MediaSource === undefined, "MediaSource is undefined in DedicatedWorker");
     13  assert_throws_js(ReferenceError,
     14                   function() { var ms = new MediaSource(); },
     15                   "MediaSource construction in DedicatedWorker throws exception");
     16 }, "MediaSource construction in DedicatedWorker context must fail if Window context did not claim MSE supported in DedicatedWorker");
     17 
     18 done();