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Diffstat (limited to 'testing/web-platform/tests/speculation-rules/prerender/activation-start.html')
-rw-r--r-- | testing/web-platform/tests/speculation-rules/prerender/activation-start.html | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/testing/web-platform/tests/speculation-rules/prerender/activation-start.html b/testing/web-platform/tests/speculation-rules/prerender/activation-start.html new file mode 100644 index 0000000000..7aee20c346 --- /dev/null +++ b/testing/web-platform/tests/speculation-rules/prerender/activation-start.html @@ -0,0 +1,72 @@ +<!DOCTYPE html> +<title>PerformanceNavigationTiming's activationStart in prerendered page</title> +<meta name="timeout" content="long"> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="/common/utils.js"></script> +<script src="/common/dispatcher/dispatcher.js"></script> +<script src="/html/browsers/browsing-the-web/remote-context-helper/resources/remote-context-helper.js"></script> +<script src="../resources/utils.js"></script> +<script src="resources/utils.js"></script> + +<body> +<script> +setup(() => assertSpeculationRulesIsSupported()); + +promise_test(async t => { + const ACTIVATION_DELAY = 10; + + const rcHelper = new RemoteContextHelper(); + const referrerRC = await rcHelper.addWindow(undefined, { features: 'noopener' }); + const prerenderedRC = await addPrerenderRC(referrerRC); + const iframeRC = await prerenderedRC.addIframe(); + + assert_equals( + await getActivationStart(prerenderedRC), + 0, + 'activationStart must be 0 while prerendering' + ); + + assert_equals( + await getActivationStart(iframeRC), + 0, + 'activationStart must be 0 while prerendering the iframe' + ); + + // Wait ACTIVATION_DELAY ms before activation. + await new Promise(resolve => t.step_timeout(resolve, ACTIVATION_DELAY)); + + await activatePrerenderRC(referrerRC, prerenderedRC); + + assert_greater_than_equal( + await getActivationStart(prerenderedRC), + ACTIVATION_DELAY, + 'activationStart after activation must be greater than or equal to ' + + 'ACTIVATION_DELAY' + ); + + assert_greater_than_equal( + await getActivationStart(iframeRC), + ACTIVATION_DELAY, + 'activationStart after activation must be greater than or equal to ' + + 'ACTIVATION_DELAY in the iframe' + ); +}); + +// A utility to both extract activationStart from the prerendered +// RemoteContextWrapper, and also check that it shows up in toJSON(). +async function getActivationStart(prerenderedRC) { + const [activationStart, activationStartInToJSON] = await prerenderedRC.executeScript(() => { + const entry = performance.getEntriesByType("navigation")[0]; + return [entry.activationStart, entry.toJSON().activationStart]; + }); + + assert_equals( + activationStart, + activationStartInToJSON, + "activationStart value must be available in the result of toJSON()" + ); + + return activationStart; +} +</script> |