Sam Sneddon
5bbaff2951
Automatic update from web-platform-tests Speculation Rules prerender tests should check for support We're seeing timeouts on the STP bots, because spending over an hour timing out on speculation rules tests just eats into the timeout. -- wpt-commits: 9f7999f4b3dd412a338f3231228e64230d6a6531 wpt-pr: 59217
73 lines
2.3 KiB
HTML
73 lines
2.3 KiB
HTML
<!DOCTYPE html>
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<title>PerformanceNavigationTiming's activationStart in prerendered page</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="/html/browsers/browsing-the-web/remote-context-helper/resources/remote-context-helper.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('prerender'));
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promise_test(async t => {
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const ACTIVATION_DELAY = 10;
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const rcHelper = new PrerenderingRemoteContextHelper();
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const referrerRC = await rcHelper.addWindow(undefined, { features: 'noopener' });
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const prerenderedRC = await referrerRC.addPrerender();
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const iframeRC = await prerenderedRC.addIframe();
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assert_equals(
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await getActivationStart(prerenderedRC),
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0,
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'activationStart must be 0 while prerendering'
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);
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assert_equals(
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await getActivationStart(iframeRC),
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0,
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'activationStart must be 0 while prerendering the iframe'
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);
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// Wait ACTIVATION_DELAY ms before activation.
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await new Promise(resolve => t.step_timeout(resolve, ACTIVATION_DELAY));
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await referrerRC.navigateExpectingPrerenderingActivation(prerenderedRC);
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assert_greater_than_equal(
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await getActivationStart(prerenderedRC),
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ACTIVATION_DELAY,
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'activationStart after activation must be greater than or equal to ' +
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'ACTIVATION_DELAY'
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);
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assert_greater_than_equal(
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await getActivationStart(iframeRC),
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ACTIVATION_DELAY,
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'activationStart after activation must be greater than or equal to ' +
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'ACTIVATION_DELAY in the iframe'
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);
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});
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// A utility to both extract activationStart from the prerendered
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// RemoteContextWrapper, and also check that it shows up in toJSON().
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async function getActivationStart(prerenderedRC) {
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const [activationStart, activationStartInToJSON] = await prerenderedRC.executeScript(() => {
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const entry = performance.getEntriesByType("navigation")[0];
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return [entry.activationStart, entry.toJSON().activationStart];
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});
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assert_equals(
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activationStart,
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activationStartInToJSON,
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"activationStart value must be available in the result of toJSON()"
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);
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return activationStart;
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}
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</script>
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