mirror of https://github.com/tc39/test262.git
70 lines
2.1 KiB
JavaScript
70 lines
2.1 KiB
JavaScript
// Copyright (C) 2020 Rick Waldron. All rights reserved.
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|
|
|
/*---
|
|
esid: sec-atomics.waitasync
|
|
description: >
|
|
Test Atomics.waitAsync on arrays that allow atomic operations
|
|
flags: [async]
|
|
includes: [atomicsHelper.js, asyncHelpers.js]
|
|
features: [Atomics.waitAsync, Atomics]
|
|
---*/
|
|
assert.sameValue(typeof Atomics.waitAsync, 'function', 'The value of `typeof Atomics.waitAsync` is "function"');
|
|
|
|
$262.agent.start(`
|
|
(async () => {
|
|
var sab = new SharedArrayBuffer(1024);
|
|
var good_indices = [ (view) => 0/-1, // -0
|
|
(view) => '-0',
|
|
(view) => view.length - 1,
|
|
(view) => ({ valueOf: () => 0 }),
|
|
(view) => ({ toString: () => '0', valueOf: false }) // non-callable valueOf triggers invocation of toString
|
|
];
|
|
|
|
var view = new Int32Array(sab, 32, 20);
|
|
|
|
view[0] = 0;
|
|
$262.agent.report("A " + (await Atomics.waitAsync(view, 0, 0, 0).value))
|
|
$262.agent.report("B " + (await Atomics.waitAsync(view, 0, 37, 0).value));
|
|
|
|
const results = [];
|
|
// In-bounds boundary cases for indexing
|
|
for ( let IdxGen of good_indices ) {
|
|
let Idx = IdxGen(view);
|
|
view.fill(0);
|
|
// Atomics.store() computes an index from Idx in the same way as other
|
|
// Atomics operations, not quite like view[Idx].
|
|
Atomics.store(view, Idx, 37);
|
|
results.push(await Atomics.waitAsync(view, Idx, 0).value);
|
|
}
|
|
$262.agent.report("C " + results.join(","));
|
|
$262.agent.leaving();
|
|
})();
|
|
`);
|
|
|
|
|
|
asyncTest(async () => {
|
|
const outcomes = [];
|
|
|
|
for (let i = 0; i < 3; i++) {
|
|
outcomes.push(await $262.agent.getReportAsync());
|
|
}
|
|
|
|
assert.sameValue(
|
|
outcomes[0],
|
|
'A timed-out',
|
|
'The value of outcomes[0] is "A timed-out"'
|
|
);
|
|
|
|
assert.sameValue(
|
|
outcomes[1],
|
|
'B not-equal',
|
|
'The value of outcomes[1] is "B not-equal"'
|
|
);
|
|
assert.sameValue(
|
|
outcomes[2],
|
|
'C not-equal,not-equal,not-equal,not-equal,not-equal',
|
|
'The value of outcomes[2] is "C not-equal,not-equal,not-equal,not-equal,not-equal"'
|
|
);
|
|
});
|