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118 lines
3.4 KiB
HTML
118 lines
3.4 KiB
HTML
<!DOCTYPE html>
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<meta charset=utf-8>
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<title>Web Locks API: Workers</title>
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<link rel=help href="https://wicg.github.io/web-locks/">
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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="resources/helpers.js"></script>
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<script>
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'use strict';
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promise_test(async t => {
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const worker = new Worker('resources/worker.js');
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t.add_cleanup(() => { worker.terminate(); });
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const res = 'shared resource 1';
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const lock_id = (await postToWorkerAndWait(
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worker, {op: 'request', name: res, mode: 'shared'})).lock_id;
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await navigator.locks.request(res, {mode: 'shared'}, async lock => {
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await postToWorkerAndWait(worker, {op: 'release', lock_id});
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});
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}, 'Window and Worker - shared mode');
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promise_test(async t => {
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const worker = new Worker('resources/worker.js');
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t.add_cleanup(() => { worker.terminate(); });
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const res = 'exclusive resource 1';
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// worker acquires the lock.
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const lock_id = (await postToWorkerAndWait(
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worker, {op: 'request', name: res})).lock_id;
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// This request should be blocked.
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let lock_granted = false;
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const blocked = navigator.locks.request(
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res, lock => { lock_granted = true; });
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// Verify we can't get it.
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let available = undefined;
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await navigator.locks.request(
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res, {ifAvailable: true}, lock => { available = lock !== null; });
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assert_false(available);
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assert_false(lock_granted);
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// Ask the worker to release it.
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await postToWorkerAndWait(worker, {op: 'release', lock_id});
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// Now we've got it.
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const lock2 = await blocked;
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assert_true(lock_granted);
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}, 'Window and Worker - exclusive mode');
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promise_test(async t => {
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const worker1 = new Worker('resources/worker.js');
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const worker2 = new Worker('resources/worker.js');
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t.add_cleanup(() => { worker1.terminate(); worker2.terminate(); });
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const res = 'exclusive resource 2';
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// worker1 acquires the lock.
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const lock_id = (await postToWorkerAndWait(
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worker1, {op: 'request', name: res})).lock_id;
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// This request should be blocked.
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let lock_granted = false;
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const blocked = postToWorkerAndWait(
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worker2, {op: 'request', name: res});
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blocked.then(f => { lock_granted = true; });
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// Verify worker2 can't get it.
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assert_true((await postToWorkerAndWait(worker2, {
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op: 'request', name: res, ifAvailable: true
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})).failed, 'Lock request should have failed');
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assert_false(lock_granted);
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// Ask worker1 to release it.
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await postToWorkerAndWait(worker1, {op: 'release', lock_id});
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// Now worker2 can get it.
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const lock = await blocked;
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assert_true(lock_granted);
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}, 'Worker and Worker - exclusive mode');
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promise_test(async t => {
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const worker = new Worker('resources/worker.js');
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const res = 'exclusive resource 3';
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// Worker acquires the lock.
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await postToWorkerAndWait(worker, {op: 'request', name: res});
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// This request should be blocked.
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let lock_granted = false;
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const blocked = navigator.locks.request(
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res, lock => { lock_granted = true; });
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// Verify we can't get it.
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let available = undefined;
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await navigator.locks.request(
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res, {ifAvailable: true}, lock => { available = lock !== null; });
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assert_false(available);
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assert_false(lock_granted);
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// Implicitly release it by terminating the worker.
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worker.terminate();
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// Now we've got it.
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const lock = await blocked;
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assert_true(lock_granted);
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}, 'Terminated Worker - exclusive mode');
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</script>
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