filereader_events.any.js

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This WPT test may be referenced by the following Test IDs:
- /FileAPI/reading-data-section/filereader_events.any.html - WPT Dashboard Interop Dashboard
- /FileAPI/reading-data-section/filereader_events.any.worker.html - WPT Dashboard Interop Dashboard

promise_test(async t => {

  var reader = new FileReader();

  var eventWatcher = new EventWatcher(t, reader, ['loadstart', 'progress', 'abort', 'error', 'load', 'loadend']);

  reader.readAsText(new Blob([]));

  await eventWatcher.wait_for('loadstart');

  // No progress event for an empty blob, as no data is loaded.

  await eventWatcher.wait_for('load');

  await eventWatcher.wait_for('loadend');

}, 'events are dispatched in the correct order for an empty blob');

promise_test(async t => {

  var reader = new FileReader();

  var eventWatcher = new EventWatcher(t, reader, ['loadstart', 'progress', 'abort', 'error', 'load', 'loadend']);

  reader.readAsText(new Blob(['a']));

  await eventWatcher.wait_for('loadstart');

  await eventWatcher.wait_for('progress');

  await eventWatcher.wait_for('load');

  await eventWatcher.wait_for('loadend');

}, 'events are dispatched in the correct order for a non-empty blob');