chromium/third_party/blink/web_tests/external/wpt/workers/modules/dedicated-worker-import-meta.html

<!DOCTYPE html>
<title>DedicatedWorker: import.meta</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>

promise_test(() => {
  const script_url = 'resources/import-meta-url-worker.js';
  const worker = new Worker(script_url, { type: 'module' });
  return new Promise((resolve, reject) => {
        worker.onmessage = resolve;
        worker.onerror = error => {
          const msg = error instanceof ErrorEvent ? error.message
                                                  : 'unknown error';
          reject(msg);
        };
      })
      .then(msg_event => assert_true(msg_event.data.endsWith(script_url)));
}, 'Test import.meta.url on the top-level module script.');

promise_test(() => {
  const script_url = 'import-meta-url-export.js';
  const worker = new Worker('resources/dynamic-import-given-url-worker.js',
                            { type: 'module' });
  worker.postMessage('./' + script_url);
  return new Promise((resolve, reject) => {
        worker.onmessage = resolve;
        worker.onerror = error => {
          const msg = error instanceof ErrorEvent ? error.message
                                                  : 'unknown error';
          reject(msg);
        };
      })
      .then(msg_event => assert_true(msg_event.data.endsWith(script_url)));
}, 'Test import.meta.url on the imported module script.');

promise_test(() => {
  const script_url = 'import-meta-url-export.js';
  const worker = new Worker('resources/dynamic-import-given-url-worker.js',
                            { type: 'module' });
  worker.postMessage('./' + script_url);

  return new Promise((resolve, reject) => {
        worker.onmessage = resolve;
        worker.onerror = error => {
          const msg = error instanceof ErrorEvent ? error.message
                                                  : 'unknown error';
          reject(msg);
        };
      })
      .then(msg_event => assert_true(msg_event.data.endsWith(script_url)))
      .then(() => {
        worker.postMessage('./' + script_url + '#1');
        return new Promise(resolve => worker.onmessage = resolve);
      })
      .then(msg_event => assert_true(msg_event.data.endsWith(script_url + "#1")));
}, 'Test import.meta.url on the imported module script with a fragment.');

</script>