chromium/third_party/blink/web_tests/external/wpt/navigation-api/navigation-methods/navigate-same-document.html

<!doctype html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="d"></div>
<script>
promise_test(async () => {
  let onnavigate_called = false;
  navigation.onnavigate = () => onnavigate_called = true;
  await navigation.navigate("#d").committed;
  assert_equals(location.hash, "#d");
  assert_true(onnavigate_called);
  assert_equals(document.querySelector(":target"), d);
}, "navigate() navigates same-document and fires onnavigate (async)");

test(() => {
  let onnavigate_called = false;
  navigation.onnavigate = () => onnavigate_called = true;
  navigation.navigate("#d");
  assert_equals(location.hash, "#d");
  assert_true(onnavigate_called);
  assert_equals(document.querySelector(":target"), d);
}, "navigate() navigates same-document and fires onnavigate (sync)");
</script>