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chromium/third_party/blink/web_tests/external/wpt/navigation-api/navigation-methods/traverseTo-multiple-steps.html 

<!doctype html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
promise_test(async t => {
  let start_length = navigation.entries().length;
  let start_index = navigation.currentEntry.index;
  // Wait for after the load event so that the navigation doesn't get converted
  // into a replace navigation.
  await new Promise(resolve => window.onload = () => t.step_timeout(resolve, 0));
  assert_equals(navigation.entries().length, start_length);
  let key0 = navigation.currentEntry.key;
  await navigation.navigate("#1").committed;
  await navigation.navigate("#2").committed;
  let key2 = navigation.currentEntry.key;
  assert_equals(navigation.entries().length, start_length + 2);

  await navigation.traverseTo(key0).committed;
  assert_equals(navigation.entries().length, start_length + 2);
  assert_equals(navigation.currentEntry, navigation.entries()[start_index]);
  assert_equals(key0, navigation.currentEntry.key);
  await navigation.traverseTo(key2).committed;
  assert_equals(navigation.entries().length, start_length + 2);
  assert_equals(navigation.currentEntry, navigation.entries()[start_index+2]);
  assert_equals(key2, navigation.currentEntry.key);
}, "goto() can precisely traverse multiple steps in the joint session history");
</script>