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40 lines
1.2 KiB
HTML
40 lines
1.2 KiB
HTML
<!DOCTYPE html>
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<meta charset=utf-8>
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<title>Web Locks API: Exclusive Mode</title>
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<link rel=help href="https://github.com/inexorabletash/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>
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'use strict';
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promise_test(async t => {
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const granted = [];
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function log_grant(n) { return () => { granted.push(n); }; }
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await Promise.all([
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navigator.locks.request('a', log_grant(1)),
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navigator.locks.request('a', log_grant(2)),
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navigator.locks.request('a', log_grant(3))
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]);
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assert_array_equals(granted, [1, 2, 3]);
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}, 'Lock requests are granted in order');
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promise_test(async t => {
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const granted = [];
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function log_grant(n) { return () => { granted.push(n); }; }
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let inner_promise;
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await navigator.locks.request('a', async lock => {
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inner_promise = Promise.all([
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// This will be blocked.
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navigator.locks.request('a', log_grant(1)),
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// But this should be grantable immediately.
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navigator.locks.request('b', log_grant(2))
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]);
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});
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await inner_promise;
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assert_array_equals(granted, [2, 1]);
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}, 'Requests for distinct resources can be granted');
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</script>
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