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test: update hr-time web platform tests
PR-URL: #44100 Reviewed-By: Feng Yu <F3n67u@outlook.com> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
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‎test/fixtures/wpt/README.md

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- dom/events: https://github.com/web-platform-tests/wpt/tree/f8821adb28/dom/events
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- encoding: https://github.com/web-platform-tests/wpt/tree/c1b24fce6e/encoding
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- FileAPI: https://github.com/web-platform-tests/wpt/tree/3b279420d4/FileAPI
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- hr-time: https://github.com/web-platform-tests/wpt/tree/9910784394/hr-time
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- hr-time: https://github.com/web-platform-tests/wpt/tree/34cafd797e/hr-time
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- html/webappapis/atob: https://github.com/web-platform-tests/wpt/tree/f267e1dca6/html/webappapis/atob
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- html/webappapis/microtask-queuing: https://github.com/web-platform-tests/wpt/tree/2c5c3c4c27/html/webappapis/microtask-queuing
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- html/webappapis/structured-clone: https://github.com/web-platform-tests/wpt/tree/47d3fb280c/html/webappapis/structured-clone

‎test/fixtures/wpt/hr-time/clamped-time-origin-isolated.https.html

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<!doctype html>
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<html>
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<head>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="resources/clamped-time-origin.js"></script>
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</head>
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<body>
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<script>
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// Isolated contexts should be clamped to 5 microseconds.
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run_test(/*isolated=*/true);
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</script>
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</body>
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</html>

‎test/fixtures/wpt/hr-time/clamped-time-origin-isolated.https.html.headers

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Cross-Origin-Embedder-Policy: require-corp
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Cross-Origin-Opener-Policy: same-origin

‎test/fixtures/wpt/hr-time/clamped-time-origin.html

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<!doctype html>
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<html>
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<head>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="resources/clamped-time-origin.js"></script>
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</head>
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<body>
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<script>
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// Non-isolated contexts should be clamped to 100 microseconds.
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run_test(/*isolated=*/false);
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</script>
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</body>
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</html>

‎test/fixtures/wpt/hr-time/cross-origin-isolated-timing-attack.https.html

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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8" />
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<title>window.performance.now should not enable timing attacks</title>
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<link rel="author" title="W3C" href="http://www.w3.org/" />
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<link rel="help" href="http://w3c.github.io/hr-time/#privacy-security"/>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="resources/timing-attack.js"></script>
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<script>
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run_test(/*isolated=*/true);
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</script>
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</head>
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<body>
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<h1>Description</h1>
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<p>The recommended minimum resolution of the Performance interface should be set to 5 microseconds.</p>
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<div id="log"></div>
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</body>
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</html>

‎test/fixtures/wpt/hr-time/cross-origin-isolated-timing-attack.https.html.headers

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Cross-Origin-Embedder-Policy: require-corp
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Cross-Origin-Opener-Policy: same-origin

‎test/fixtures/wpt/hr-time/idlharness-shadowrealm.window.js

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// META: script=/resources/idlharness-shadowrealm.js
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idl_test_shadowrealm(["hr-time"], ["html", "dom"]);

‎test/fixtures/wpt/hr-time/navigation-start-post-before-unload.html

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<!doctype html>
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<html>
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<head>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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</head>
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<body>
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<script>
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function busyWait(millis) {
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const start = performance.now();
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while (performance.now() < start + millis) {}
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}
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promise_test(async t => {
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const delay = 3000;
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const iframe = document.createElement('iframe');
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iframe.src = './resources/now_frame.html';
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document.body.appendChild(iframe);
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await new Promise(resolve => iframe.addEventListener('load', resolve));
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iframe.contentWindow.addEventListener('beforeunload', () => {
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busyWait(delay);
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});
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iframe.src = './resources/post.html';
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await new Promise(resolve => this.addEventListener('message', ({data}) => {
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if (data === 'done')
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resolve();
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}));
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const entry = iframe.contentWindow.performance.getEntriesByType('navigation')[0];
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assert_less_than(entry.fetchStart, delay);
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}, 'timeOrigin should be set after beforeunload');
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</script>
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</body>
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</html>

‎test/fixtures/wpt/hr-time/resources/clamped-time-origin.js

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const run_test = isolated => {
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// Multiplier to convert the clamped timestamps to microseconds.
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const multiplier = 1000;
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const windowOrigin = performance.timeOrigin;
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// Clamp to at least 5 microseconds in isolated contexts and at least 100 in
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// non-isolated ones.
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const resolution = isolated ? 5 : 100;
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const create_worker = () => {
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return new Promise(resolve => {
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const workerScript = 'postMessage({timeOrigin: performance.timeOrigin})';
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const blob = new Blob([workerScript]);
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const worker = new Worker(URL.createObjectURL(blob));
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worker.addEventListener('message', event => {
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resolve(event.data.timeOrigin);
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});
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});
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};
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promise_test(async t => {
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assert_equals(self.crossOriginIsolated, isolated,
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"crossOriginIsolated is properly set");
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let prev = windowOrigin;
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let current;
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for (let i = 1; i < 100; ++i) {
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current = await create_worker();
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assert_true(current === prev || current - prev > resolution / 1000);
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prev = current;
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}
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}, 'timeOrigins are clamped.');
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};

‎test/fixtures/wpt/hr-time/resources/post.html

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<!DOCTYPE HTML>
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<script>
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window.parent.postMessage('done');
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</script>

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