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
50 lines
1.8 KiB
HTML
50 lines
1.8 KiB
HTML
<!DOCTYPE html>
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<title>Access to the Web Serial API 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="../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 uid = token();
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const bc = new PrerenderChannel('test-channel', uid);
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const gotMessage = new Promise(resolve => {
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bc.addEventListener('message', e => {
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resolve(e.data);
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}, {
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once: true
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});
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});
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const url = `resources/web-serial.https.html?uid=${uid}`;
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window.open(url, '_blank', 'noopener');
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const result = await gotMessage;
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const expected = [
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{event: 'started waiting navigator.serial.getPorts', prerendering: true},
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{event: 'prerendering change', prerendering: false},
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{event: 'finished waiting navigator.serial.getPorts', prerendering: false},
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];
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// The spec, https://wicg.github.io/nav-speculation/prerendering.html#patch-serial,
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// says that Web Serial API has delay while prerendering for
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// requestPort(). As this test uses getPorts(), it's a tentative test.
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assert_equals(result.length, expected.length);
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for (let i = 0; i < result.length; i++) {
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assert_equals(result[i].event, expected[i].event, `event[${i}]`);
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assert_equals(result[i].prerendering, expected[i].prerendering,
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`prerendering[${i}]`);
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}
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bc.close();
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// Send a close signal to PrerenderEventCollector on the prerendered page.
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new PrerenderChannel('close', uid).postMessage('');
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}, `the access to the Web Serial API should be deferred until the prerendered
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page is activated`);
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</script>
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