| <!doctype html> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="../navigation-methods/return-value/resources/helpers.js"></script> |
| <script> |
| promise_test(async t => { |
| 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)); |
| await navigation.navigate("#1").finished; |
| |
| let back_destination; |
| navigation.addEventListener("navigate", t.step_func(e => { |
| back_destination = e.destination; |
| assert_equals(back_destination.index, start_index); |
| }), { once: true }); |
| await navigation.back().finished; |
| |
| // Disposing the destination entry of back_destination should update |
| // back_destination.index, even though back_destination's navigation has |
| // completed. |
| await navigation.navigate("#clobber_back", { history: "replace" }).finished; |
| assert_equals(back_destination.index, -1); |
| |
| navigation.addEventListener("navigate", t.step_func(e => { |
| assert_equals(e.destination.index, start_index + 1); |
| |
| // Dispose the destination entry and destination.index should update. |
| navigation.navigate("#clobber_forward"); |
| assert_equals(e.destination.index, -1); |
| }), { once: true }); |
| await assertBothRejectDOM(t, navigation.forward(), "AbortError"); |
| }, "navigate event destination.index should be dynamic"); |
| </script> |
