disambigaute-traverseTo-back-multiple.html

<!doctype html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<iframe id="i" src="/common/blank.html"></iframe>
<script>
async_test(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.
  window.onload = () => t.step_timeout(() => {
    assert_equals(navigation.entries().length, start_length);
    assert_equals(i.contentWindow.navigation.entries().length, 1);
    navigation.navigate("#top");
    assert_equals(navigation.entries().length, start_length+1);
    assert_equals(i.contentWindow.navigation.entries().length, 1);

    let iframe_initial_key = i.contentWindow.navigation.currentEntry.key;
    i.contentWindow.navigation.navigate("#1");
    i.contentWindow.navigation.navigate("#2");
    assert_equals(navigation.entries().length, start_length+1);
    assert_equals(i.contentWindow.navigation.entries().length, 3);
    assert_equals(navigation.currentEntry.index, start_index+1);
    assert_equals(i.contentWindow.navigation.currentEntry.index, 2);
    assert_true(navigation.canGoBack);
    assert_true(i.contentWindow.navigation.canGoBack);

    // There are 2 joint session history entries containing the iframe's
    // initial key.  Navigate to the nearest one (which navigates the iframe
    // but not the top window).
    i.contentWindow.navigation.traverseTo(iframe_initial_key).committed.then(t.step_func_done(() => {
      assert_equals(navigation.currentEntry.index, start_index+1);
      assert_equals(i.contentWindow.navigation.currentEntry.index, 0);
    }));
  }, 0);
}, "navigation.traverseTo() goes to the nearest entry when going back");
</script>
chromium/third_party/blink/web_tests/external/wpt/navigation-api/navigation-methods/disambigaute-traverseTo-back-multiple.html
