<!DOCTYPE html>
<title>SensorErrorEvent constructor</title>
<link rel="help" href="https://w3c.github.io/sensors/#the-sensor-error-event-interface">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
  test(() => {
    assert_equals(SensorErrorEvent.length, 2);
    assert_throws(new TypeError, () => new SensorErrorEvent('error'));
  }, 'SensorErrorEvent constructor without init dict');

  test(() => {
    const error = new DOMException;
    const event = new SensorErrorEvent('type', { error: error });
    assert_equals(event.type, 'type', 'type');
    assert_equals(event.error, error, 'error');
  }, 'SensorErrorEvent constructor with init dict');
</script>