mozilla-central/testing/web-platform/tests/speculation-rules/prerender/no-vary-search-hint.https.html

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<!DOCTYPE html>
<meta charset="utf-8">
<meta name="timeout" content="long">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/get-host-info.sub.js"></script>
<script src="/common/utils.js"></script>
<script src="/common/dispatcher/dispatcher.js"></script>
<script src="../resources/utils.js"></script>
<script src="resources/utils.js"></script>
<script src="/common/subset-tests.js"></script>
<script src="../prefetch/no-vary-search/test-utils.js"></script>
<script src="../prefetch/no-vary-search/hint-test-inputs.js"></script>
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<body></body>
<script>
setup(() => assertSpeculationRulesIsSupported());
function prerender_no_vary_search_test(description, noVarySearch, noVarySearchHint, prefetchQuery, navigateQuery, shouldUse) {
promise_test(async t => {
const prefetchQueryParams = new URLSearchParams(prefetchQuery);
const navigateQueryParams = new URLSearchParams(navigateQuery);
addNoVarySearchHeaderUsingPipe(prefetchQueryParams, noVarySearch);
addNoVarySearchHeaderUsingPipe(navigateQueryParams, noVarySearch);
const params = {
'prerendering': prefetchQueryParams,
'activating': navigateQueryParams
};
const rule_extras = {
'expects_no_vary_search': noVarySearchHint
};
// TODO(crbug.com/343754418): Block serving a response to prerendering
// request until `tryToActivate` processes the No-Vary-Search hint and
// starts waiting for the response. See prefetch-single-with-hint.https.html
// and prefetch_nvs_hint.py. Without that, the No-Vary-Search header may
// arrive before the hint is processed. The case is not what this test want
// to confirm.
const {tryToActivate, getNetworkRequestCount} =
await create_prerendered_page(t, params, undefined, rule_extras);
if (shouldUse) {
// The request should be sent only one time for prerendering.
assert_equals(await tryToActivate(), 'activated');
assert_equals(await getNetworkRequestCount(), '1');
} else {
// The request should be sent twice for prerendering and real navigation
// that doesn't activate the prerendered page.
assert_equals(await tryToActivate(), 'discarded');
assert_equals(await getNetworkRequestCount(), '2');
}
}, description);
}
hint_test_inputs.forEach(({description, noVarySearch, noVarySearchHint, prefetchQuery, navigateQuery, shouldUse}) => {
subsetTest(prerender_no_vary_search_test, description, noVarySearch, prefetchQuery, navigateQuery, shouldUse);
});
</script>