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<!DOCTYPE html>
<head>
<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="./resources/compression-dictionary-util.sub.js"></script>
</head>
<body>
<script>
compression_dictionary_promise_test(async (t) => {
const dict = await (await fetch(kRegisterDictionaryPath)).text();
assert_equals(dict, kDefaultDictionaryContent);
// Wait until `available-dictionary` header is available.
assert_equals(
await waitUntilAvailableDictionaryHeader(t, {}),
kDefaultDictionaryHashBase64);
}, 'Simple dictionary registration and unregistration');
compression_dictionary_promise_test(async (t) => {
const dict = await (await fetch(`${kRegisterDictionaryPath}?id=test`)).text();
// Wait until `available-dictionary` header is available.
assert_equals(
await waitUntilAvailableDictionaryHeader(t, {}),
kDefaultDictionaryHashBase64);
assert_equals(await checkHeader('dictionary-id', {}), '"test"');
}, 'Dictionary registration with dictionary ID');
compression_dictionary_promise_test(async (t) => {
// Registers a first dictionary.
const dictionary_path1 = `${kRegisterDictionaryPath}?id=id1`;
const dict1 = await (await fetch(dictionary_path1)).text();
// Wait until `available-dictionary` header is available.
assert_equals(
await waitUntilAvailableDictionaryHeader(t, {}),
kDefaultDictionaryHashBase64);
// Check the `dictionary-id` header.
assert_equals(await checkHeader('dictionary-id', {}), '"id1"');
// Registers a second dictionary.
const kAlternativeDictionaryContent =
'This is an alternative test dictionary.';
const dictionary_path2 =
`${kRegisterDictionaryPath}?content=${kAlternativeDictionaryContent}&id=id2`;
const expected_dictionary_header =
await calculateDictionaryHash(kAlternativeDictionaryContent);
const dict2 = await (await fetch(dictionary_path2)).text();
assert_equals(dict2, kAlternativeDictionaryContent);
// Wait until `available-dictionary` header is available.
// Note: Passing `expected_header` to ignore the old dictionary.
assert_equals(
await waitUntilAvailableDictionaryHeader(
t, {expected_header: expected_dictionary_header}),
expected_dictionary_header);
// Check the `dictionary-id` header.
assert_equals(await checkHeader('dictionary-id', {}), '"id2"');
}, 'New dictionary registration overrides the existing one');
compression_dictionary_promise_test(async (t) => {
// Dictionary responses often include
// Vary: available-dictionary, accept-encoding
// We need to make sure that the browser cache does not actually vary
// based on those headers, otherwise a resource that uses itself as a
// dictionary would trigger a second fetch of the same resource.
const dictionaryUrl = `${SAME_ORIGIN_RESOURCES_URL}/register-dictionary.py?id=cache`;
const dict = await (await fetch(dictionaryUrl)).text();
assert_equals(dict, kDefaultDictionaryContent);
// Wait until `available-dictionary` header is available.
assert_equals(
await waitUntilAvailableDictionaryHeader(t, {}),
kDefaultDictionaryHashBase64);
// re-fetch the dictionary (should come from cache)
const dict2 = await (await fetch(dictionaryUrl)).text();
assert_equals(dict2, kDefaultDictionaryContent);
const entries = performance.getEntriesByName(dictionaryUrl);
assert_equals(entries.length, 2);
assert_not_equals(entries[0].transferSize, 0);
assert_equals(entries[1].transferSize, 0);
}, 'Dictionary registration does not invalidate cache entry');
compression_dictionary_promise_test(async (t) => {
// Register a dictionary that has already expired (age > max-age).
// Make sure it is on a path separate from another dictionary so they can
// be checked independently.
const pattern = "%2Ffetch%2Fcompression-dictionary%2Fresources%2Fecho-headers.py";
await fetch(`${kRegisterDictionaryPath}?id=id1&age=7200&max-age=3600&match=${pattern}`);
// register another dictionary that we can use to tell when the first
// dictionary should also be registered (since the first dictionary
// should not send any headers that can be detected directly).
const pattern2 = "%2Ffetch%2Fcompression-dictionary%2Fresources%2Fecho-headers2.py";
await fetch(`${kRegisterDictionaryPath}?id=id2&match=${pattern2}`);
assert_equals(
await waitUntilAvailableDictionaryHeader(t, {use_alt_path: true}),
kDefaultDictionaryHashBase64);
assert_equals((await checkHeaders({use_alt_path: true}))['dictionary-id'], '"id2"');
// Make sure the expired dictionary isn't announced as being available.
const headers = await (await fetch('./resources/echo-headers.py')).json();
assert_false("available-dictionary" in headers);
}, 'Expired dictionary is not used');
</script>
</body>
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