start-exception.html | Explore in Territory

<!doctype html>
<title>Test getting an exception when calling start() in the Speech JavaScript API</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script type="module">
import {MockSpeechRecognizer} from '../resources/mock-speechrecognizer.js';

const mock = new MockSpeechRecognizer();

test(() => {
  assert_true('webkitSpeechRecognition' in self);
  assert_false(webkitSpeechRecognition == null);
}, "Check availability of constructors");

async_test(t => {
  const r = new webkitSpeechRecognition();
  // Set default handlers.
  for (const prop in r) {
    if (prop.match('^on')) {
      r[prop] = () => {
        if (event.type === 'end') {
          r.start();
          r.abort();
          r.onend = () => t.done();
        } else {
          assert_throws_dom('InvalidStateError', () => r.start());
        }
      }
    }
  }
  r.start();
  assert_throws_dom('InvalidStateError', () => r.start());
}, "Double start");

</script>

chromium/third_party/blink/web_tests/wpt_internal/speech/scripted/start-exception.html