servo/tests/wpt/web-platform-tests/web-bundle/subresource-loading/resource-timing.https.tentative.html

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2.2 KiB
HTML

<!DOCTYPE html>
<meta charset="utf-8" />
<title>Resource timing entries present for uuid-in-package resources</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../resources/test-helpers.js"></script>
<body>
<script>
setup(() => {
assert_true(HTMLScriptElement.supports("webbundle"));
});
promise_test(async (t) => {
const frame_id = "uuid-in-package:429fcc4e-0696-4bad-b099-ee9175f023ae";
const script_id = "uuid-in-package:020111b3-437a-4c5c-ae07-adb6bbffb720";
const element = createWebBundleElement(
"../resources/wbn/uuid-in-package.wbn",
/*resources=*/ [frame_id, script_id]
);
document.body.appendChild(element);
let iframe_entries = 0;
let script_entries = 0;
// Declare the report_result function as outputting into stderr
// because it is used in the WebBundle script to report the script load.
window.report_result = console.error;
const promise = new Promise((resolve) => {
new PerformanceObserver(
t.step_func((entryList) => {
let entries = entryList.getEntriesByType("resource");
for (let i = 0; i < entries.length; ++i) {
// Ignore any entries for the test harness files if present.
if (/testharness(report)?\.js/.test(entries[i].name)) {
continue;
}
if (entries[i].name === frame_id) ++iframe_entries;
if (entries[i].name === script_id) ++script_entries;
}
if (iframe_entries == 1 && script_entries == 1) {
resolve();
}
})
).observe({ entryTypes: ["resource"] });
});
// Add iframe and the script so we get the ResourceTiming
const iframe = document.createElement("iframe");
iframe.src = frame_id;
document.body.appendChild(iframe);
const script = document.createElement("script");
script.src = script_id;
document.body.appendChild(script);
return promise;
}, "Each uuid-in-package resource should have exactly 1 ResourceTiming entry.");
</script>
</body>