disambigaute-traverseTo-forward-multiple.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /navigation-api/navigation-methods/disambigaute-traverseTo-forward-multiple.html - WPT Dashboard Interop Dashboard

<!doctype html>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<iframe id="i" src="/common/blank.html"></iframe>

<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);

  assert_equals(i.contentWindow.navigation.entries().length, 1);

  let initial_key = navigation.currentEntry.key;

  await navigation.navigate("#top1").committed;

  await navigation.navigate("#top2").committed;

  assert_equals(navigation.entries().length, start_length+2);

  assert_equals(i.contentWindow.navigation.entries().length, 1);

  await i.contentWindow.navigation.navigate("#1").committed;

  assert_equals(navigation.entries().length, start_length+2);

  assert_equals(i.contentWindow.navigation.entries().length, 2);

  assert_equals(navigation.currentEntry.index, start_index+2);

  assert_equals(i.contentWindow.navigation.currentEntry.index, 1);

  assert_true(navigation.canGoBack);

  assert_true(i.contentWindow.navigation.canGoBack);

  let final_key = navigation.currentEntry.key;

  await i.contentWindow.navigation.back().committed;

  assert_equals(navigation.currentEntry.index, start_index+2);

  assert_equals(i.contentWindow.navigation.currentEntry.index, 0);

  await navigation.traverseTo(initial_key).committed;

  assert_equals(navigation.currentEntry.index, start_index);

  assert_equals(i.contentWindow.navigation.currentEntry.index, 0);

  // There are 2 joint session history entries containing the top window's

  // final key. Navigate to the nearest one (which navigates only the

  // top window).

  await navigation.traverseTo(final_key).committed;

  assert_equals(navigation.currentEntry.index, start_index+2);

  assert_equals(i.contentWindow.navigation.currentEntry.index, 0);

}, "navigation.traverseTo() goes to the nearest entry when going forward");

</script>