testing/web-platform/tests/workers/modules/dedicated-worker-import-failure.html
author Cosmin Sabou <csabou@mozilla.com>
Sat, 12 Jul 2025 09:18:08 +0300 (3 hours ago)
changeset 796290 5ad1f0c58c82bdfa2f42fed870bbe143465398d0
parent 668608 b94f3d418f54f964368486a65cd5d15e828867db
permissions -rw-r--r--
Revert "Bug 1977019 - re-enable hw video decoding testing. r=media-playback-reviewers,jolin" for causing win mda failures on test_hw_video_decoding.html This reverts commit 158474bdc0cf585b701bc47921f0a7d84f7bb84d.
<!DOCTYPE html>
<title>DedicatedWorker: import failure</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script> setup({allow_uncaught_exception: true}); </script>
<script>

promise_test(async () => {
  const scriptURL = 'resources/import-scripts-worker.js';
  const worker = new Worker(scriptURL, { type: 'module' });
  const msg_event = await new Promise(resolve => worker.onmessage = resolve);
  assert_equals(msg_event.data, 'TypeError');
}, 'importScripts() on module worker should throw an exception.');

promise_test(() => {
  const scriptURL = 'resources/non-existent-worker.js';
  const worker = new Worker(scriptURL, { type: 'module' });
  return new Promise(resolve => worker.onerror = resolve);
}, 'Worker construction for non-existent script should dispatch an ' +
   'ErrorEvent.');

promise_test(() => {
  const scriptURL = 'resources/static-import-non-existent-script-worker.js';
  const worker = new Worker(scriptURL, { type: 'module' });
  return new Promise(resolve => worker.onerror = resolve);
}, 'Static import for non-existent script should dispatch an ErrorEvent.');

promise_test(async () => {
  const scriptURL = './non-existent-worker.js';
  const worker = new Worker('resources/dynamic-import-given-url-worker.js',
                            { type: 'module' });
  worker.postMessage(scriptURL);
  const msg_event = await new Promise((resolve, reject) => {
    worker.onmessage = resolve;
    worker.onerror = error => {
      const msg = error instanceof ErrorEvent ? error.message
                                              : 'unknown error';
      reject(msg);
    };
  });
  assert_equals(msg_event.data, 'TypeError');
}, 'Dynamic import for non-existent script should throw an exception.');

test(() => {
  const scriptURL = 'http://invalid:123$';
  assert_throws_dom('SyntaxError', () => new Worker(scriptURL, { type: 'module' }));
}, 'Worker construction for an invalid URL should throw an exception.');

async_test((t) => {
  const scriptURL = 'file:///static-import-worker.js';
  const worker = new Worker(scriptURL, { type: 'module' });
  worker.onerror = t.step_func_done(function(e) {
    assert_true(e instanceof Event);
  });
}, 'Worker construction for a file URL should fail');

</script>