LayoutTests/http/tests/dom/document-fragment.html

<script>

if (window.testRunner) {
    testRunner.dumpAsText();
    testRunner.waitUntilDone();
    if (testRunner.setShouldDecideNavigationPolicyAfterDelay)
        testRunner.setShouldDecideNavigationPolicyAfterDelay(true);
}

var events = [];
function eventHappened(eventName) {
    events.push(eventName);
    if (events.length == 5) {
        alert(events[0] + ", " + events[1] + ", " + events[2] + ", " + events[3] + ", " + events[4]);
        if (window.testRunner)
            testRunner.notifyDone();
    }
}

window.onhashchange = ()=>{ eventHappened("hashchange") }
window.onpopstate = ()=>{ eventHappened("popstate") };
window.location.href = "#fragment";
Promise.resolve().then(()=>{ eventHappened("promise") });
setTimeout(()=>{ eventHappened("timeout") }, 0)
eventHappened("continuing with " + (document.URL.endsWith("#fragment") ? "correct fragment" : "incorrect fragment"));

</script>