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Draft popstate/hashchange/load order tests #32392

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Draft popstate/hashchange/load order tests #32392

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Draft popstate/hashchange/load order tests
domenic Jan 14, 2022
bef868c
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domenic Jan 14, 2022
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@domenic
domenic committed Jan 14, 2022
commit bef868c7d56c393baf97813b7e87b2df63a47f67
5 changes: 3 additions & 2 deletions html/browsers/browsing-the-web/history-traversal/event-order/after-load-pushState.html
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Original file line number Diff line number Diff line change
Expand Up @@ -17,14 +17,15 @@
async_test(t => {
assert_array_equals(window.eventOrder, []);

window.addEventListener("load", t.step_func(() => {
// 0 timeout is necessary because if we do pushState before load is finished firing it counts as a replacement.
window.addEventListener("load", () => t.step_timeout(() => {
assert_array_equals(window.eventOrder, ["load"]);

t.step_timeout(t.step_func_done(() => {
assert_array_equals(window.eventOrder, ["load"]);
}), 100);

history.pushState({ state: "new state" }, "");
}));
}, 0));
}, "when pushing state, after the load event");
</script>
38 changes: 38 additions & 0 deletions ...sers/browsing-the-web/history-traversal/event-order/same-document-traverse-immediate.html
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@@ -0,0 +1,38 @@
<!DOCTYPE html>
<meta charset="utf-8">
<title>Popstate/hashchange/load event ordering</title>

<script>
// Set these up super-early before we hit the network for the test harness, just in case.
window.eventOrder = [];
window.onhashchange = () => window.eventOrder.push("hashchange");
window.onpopstate = () => window.eventOrder.push("popstate");
window.onload = () => window.eventOrder.push("load");
</script>

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

<script>
async_test(t => {
assert_array_equals(window.eventOrder, []);

// 0 timeout is necessary because if we do location.hash assignment before load is finished firing it counts as a replacement.
window.addEventListener("load", () => t.step_timeout(() => {
assert_array_equals(window.eventOrder, ["load"]);

window.addEventListener("hashchange", t.step_func(() => {
assert_array_equals(window.eventOrder, ["load", "popstate", "hashchange"]);

window.addEventListener("hashchange", t.step_func_done(() => {
assert_array_equals(window.eventOrder, ["load", "popstate", "hashchange", "popstate", "hashchange"]);
}));
}), { once: true });

location.hash = "#1";
assert_array_equals(window.eventOrder, ["load", "popstate"]);
history.back();
assert_array_equals(window.eventOrder, ["load", "popstate"]);
}, 0));
}, "when traversing back, before hashchange");
</script>