102 lines
3.6 KiB
JavaScript
102 lines
3.6 KiB
JavaScript
// META: script=/resources/testdriver.js
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// META: script=/resources/testdriver-vendor.js
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// META: script=/common/utils.js
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// META: script=/fledge/tentative/resources/fledge-util.sub.js
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// META: script=/common/subset-tests.js
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// META: script=/shared-storage/resources/util.js
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// META: script=/fenced-frame/resources/utils.js
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// META: timeout=long
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"use strict;"
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subsetTest(promise_test, async test => {
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let worklet = await sharedStorage.createWorklet('resources/simple-module.js');
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const ancestor_key = token();
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let url0 = generateURL("/shared-storage/resources/frame0.html",
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[ancestor_key]);
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let url1 = generateURL("/shared-storage/resources/frame1.html",
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[ancestor_key]);
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// Override the default resource path, as we are not running within the Fledge
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// repository.
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RESOURCE_PATH = '/fledge/tentative/resources/';
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const pa_uuid = generateUuid(test);
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let biddingLogicURL = createBiddingScriptURL(
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{
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generateBid:
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`
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sharedStorage.batchUpdate([
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new SharedStorageAppendMethod('key', 'a'),
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new SharedStorageAppendMethod('key', 'a')
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], {withLock: 'lock1'});
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return {};
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`
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});
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let decisionLogicURL = createDecisionScriptURL(pa_uuid);
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// Invoke `selectURL()` to perform the following steps:
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// 1. Acquires the lock.
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// 2. Reads the current value at the given key.
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// 3. Waits for 500ms.
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// 4. Sets the shared storage value to the read value appended with the given letter.
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// 5. Releases the lock.
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//
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// After 100ms, run a Protected Audience auction that starts a worklet that:
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// - Acquires the same named lock.
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// - Executes two `append` methods, each appending the same letter.
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//
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// Expected behavior: After both of them finish, the value at the given key
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// should contain the letter repeated three times.
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//
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// This demonstrates that:
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// 1. The `withLock` option is effective, preventing the `batchUpdate()`
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// method interfering with the "get and set" operation. If the lock were
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// not used, the final value would likely be a single letter.
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// 2. `batchUpdate()` correctly executes all `append` methods within the
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// batch.
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//
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// Note: This test remains valid even if the `batchUpdate()` call happens
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// outside the critical section protected by the lock within the worklet. The
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// test effectively demonstrates mutual exclusion as long as there's a
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// reasonable chance for `batchUpdate()` to occur while the worklet is still
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// running.
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let select_url_result = await worklet.selectURL(
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"get-wait-set-within-lock",
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[{url: url0}, {url: url1}],
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{data: {'key': 'key',
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'lock_name': 'lock1',
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'append_letter': 'a'},
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resolveToConfig: true});
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// Busy wait for 100ms.
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const startWaitTime = Date.now();
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while (Date.now() - startWaitTime < 100) {}
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// Run a Protected Audience auction which triggers `append()` with the same
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// lock and the same letter.
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await joinGroupAndRunBasicFledgeTestExpectingNoWinner(
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test,
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{
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uuid: pa_uuid,
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interestGroupOverrides: {
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name: pa_uuid,
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biddingLogicURL: biddingLogicURL,
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},
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auctionConfigOverrides: {
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decisionLogicURL: decisionLogicURL
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}
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});
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attachFencedFrame(select_url_result, 'opaque-ads');
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const result = await nextValueFromServer(ancestor_key);
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assert_equals(result, "frame1_loaded");
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await verifyKeyValueForOrigin('key', 'aaa', location.origin);
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await deleteKeyForOrigin('key', location.origin);
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}, 'Test for batchUpdate() with a batch lock in a Protected Audience Worklet context');
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