console/console-count-logging.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>Console Count - Automated Test</title>
<link rel="help" href="https://console.spec.whatwg.org/#count">
<meta name="assert" content="Console count method default parameter should work">

<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js?feature=bidi"></script>
<script src="/resources/testdriver-vendor.js"></script>

<script>
promise_test(async (t) => {
  const unsubscribe = await test_driver.bidi.log.entry_added.subscribe({contexts: [window]});
  t.add_cleanup(async () => await unsubscribe());

  const expected = ["default: 1", "default: 2", "default: 3", "default: 4"];

  const entries_promise = new Promise(resolve => {
    const entries = [];
    const remove_listener = test_driver.bidi.log.entry_added.on(event => {
      if (event.type !== "console" || event.method !== "count") return;
      if (typeof event.text !== "string") return;

      entries.push(event.text);
      if (entries.length === expected.length) {
        remove_listener();
        resolve(entries);
      }
    });
    t.add_cleanup(remove_listener);
  });

  console.count();
  console.count(undefined);
  console.count("default");
  console.count({toString() { return "default"; }});

  const entries = await entries_promise;
  assert_array_equals(entries, expected);
}, "Console count method default parameter should work");
</script>