same-document-away-and-back-navigation-api.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/state/same-document-away-and-back-navigation-api.html - WPT Dashboard Interop Dashboard

<!doctype html>

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

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

<script>

async_test(t => {

  // Wait for after the load event so that the navigation doesn't get converted

  // into a replace navigation.

  window.onload = () => t.step_timeout(async () => {

    let start_length = navigation.entries().length;

    let entry0 = navigation.currentEntry;

    let start_index = entry0.index;

    let navState = { statevar: "state" };

    await navigation.navigate("#1", { state: navState }).committed;

    let entry1 = navigation.currentEntry;

    navState.startvar2 = "otherstate";

    await navigation.navigate("#2", { state: navState }).committed;

    let entry2 = navigation.currentEntry;

    t.step_func(() => {

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

      assert_equals(entry0, navigation.entries()[start_index]);

      assert_equals(entry1, navigation.entries()[start_index + 1]);

      assert_equals(entry2, navigation.entries()[start_index + 2]);

      assert_equals(entry0.getState(), undefined);

      let state1 = entry1.getState();

      assert_not_equals(state1, undefined);

      assert_not_equals(state1, navState);

      assert_equals(state1.statevar, "state");

      assert_equals(state1.startvar2, undefined);

      let state2 = entry2.getState();

      assert_not_equals(state2, undefined);

      assert_not_equals(state2, navState);

      assert_equals(state2.statevar, "state");

      assert_equals(state2.startvar2, "otherstate");

      navigation.back();

      window.onpopstate = t.step_func_done(() => {

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

        let back_entry = navigation.currentEntry;

        assert_equals(back_entry, navigation.entries()[start_index + 1]);

        let back_state = back_entry.getState();

        assert_not_equals(back_state, state1);

        assert_not_equals(back_state, state2);

        assert_equals(back_state.statevar, "state");

        assert_equals(back_state.startvar2, undefined);

});

    })();

  }, 0);

}, "entry.getState() behavior after navigating away using the navigation API, then back");

</script>