95 lines
4.7 KiB
HTML
95 lines
4.7 KiB
HTML
<!DOCTYPE html>
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<title>Construction of Web Workers is deferred</title>
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<meta name="timeout" content="long">
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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="/common/utils.js"></script>
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<script src="/common/dispatcher/dispatcher.js"></script>
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<script src="../resources/utils.js"></script>
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<script src="resources/utils.js"></script>
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<body>
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<script>
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setup(() => assertSpeculationRulesIsSupported());
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promise_test(async t => {
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const {exec, activate} = await create_prerendered_page(t);
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const workerURL = new URL('resources/worker-post-timeOrigin.js', location.href).toString();
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await exec(workerURL => {
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window.worker = new Worker(workerURL);
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window.waitForWorker = new Promise(resolve => worker.addEventListener('message', e => {
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resolve({
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prerendering: document.prerendering,
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activationStart: performance.getEntriesByType('navigation')[0].activationStart,
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workerLoad: performance.getEntriesByName(workerURL)[0].startTime,
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workerStart: e.data});
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}), workerURL);
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}, [workerURL]);
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// We want to prevent false success by waiting for enough time to make sure the worker is not
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// yet initialized
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await new Promise(resolve => t.step_timeout(resolve, 500));
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await activate();
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const {workerStart, activationStart, workerLoad, prerendering} = await exec(() => window.waitForWorker);
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assert_false(prerendering, "DedicatedWorker should be suspended until activated");
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assert_greater_than(activationStart, workerLoad, "Loading the worker script should not be delayed");
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assert_greater_than(workerStart, activationStart, "Starting the worker should be delayed");
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}, "Dedicated workers should be loaded in suspended state until activated");
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promise_test(async t => {
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const {exec, activate} = await create_prerendered_page(t);
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const workerURL = new URL(`resources/shared-worker.py?id=${token()}`, location.href).toString();
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await exec(workerURL => {
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window.worker = new SharedWorker(workerURL, 'dummy');
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window.worker.port.start();
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window.waitForSharedWorkerLoadingReport =
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fetch(workerURL + "&check=true")
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.then(r => t.text())
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.then(text => text === 'ok' && document.prerendering);
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window.waitForWorker = new Promise(resolve => worker.port.addEventListener('message', e => {
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resolve({
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prerendering: document.prerendering,
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activationStart: performance.getEntriesByType('navigation')[0].activationStart,
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workerLoad: performance.getEntriesByName(workerURL)[0]?.startTime,
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workerStart: e.data});
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}), workerURL);
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}, [workerURL]);
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await new Promise(resolve => t.step_timeout(resolve, 300));
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await activate();
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const {workerStart, activationStart, workerLoad, prerendering} = await exec(() => window.waitForWorker);
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assert_false(prerendering, "SharedWorker should be suspended until activated");
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assert_greater_than(activationStart, workerLoad, "Loading the worker script should not be delayed");
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assert_greater_than(workerStart, activationStart, "Starting the worker should be delayed");
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}, "Shared workers should be loaded in suspended state until activated");
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promise_test(async t => {
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const {exec, activate} = await create_prerendered_page(t);
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const workerURL = new URL(`resources/shared-worker.py?id=${token()}`, location.href).toString();
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const workerStartTime1 = await new Promise(resolve => {
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const worker = new SharedWorker(workerURL, 'worker');
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worker.port.start();
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worker.port.addEventListener('message', e => resolve(e.data));
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});
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await exec(workerURL => {
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window.worker = new SharedWorker(workerURL, 'worker');
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window.worker.port.start();
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window.waitForWorker = new Promise(resolve => worker.port.addEventListener('message', e => {
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resolve({
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prerendering: document.prerendering,
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activationStart: performance.getEntriesByType('navigation')[0].activationStart,
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workerLoad: performance.getEntriesByName(workerURL)[0]?.startTime,
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workerStartTime2: e.data});
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}), workerURL);
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}, [workerURL]);
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await new Promise(resolve => t.step_timeout(resolve, 300));
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await activate();
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const {workerStartTime2, activationStart, workerLoad, prerendering} = await exec(() => window.waitForWorker);
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assert_true(prerendering, "An existing SharedWorker should be accessible while prerendering");
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assert_greater_than(activationStart, workerLoad, "Loading the worker script should not be delayed");
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assert_equals(workerStartTime1, workerStartTime2, "The prerendered page should connect to the existing worker");
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assert_greater_than(activationStart, workerStartTime2, "Starting the worker should be done before activation");
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}, "Existing shared workers should be accessible before activation");
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</script>
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