test262/test/built-ins/Atomics/wait/nan-for-timeout.js

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// Copyright (C) 2018 Amal Hussein. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-atomics.wait
description: >
NaN timeout arg should result in an infinite timeout
info: |
Atomics.wait( typedArray, index, value, timeout )
4.Let q be ? ToNumber(timeout).
...
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Undefined Return NaN.
5.If q is NaN, let t be +, else let t be max(q, 0)
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includes: [atomicsHelper.js]
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features: [Atomics, SharedArrayBuffer, TypedArray]
---*/
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$262.agent.start(`
$262.agent.receiveBroadcast(function(sab) {
const i32a = new Int32Array(sab);
$262.agent.report(Atomics.wait(i32a, 0, 0, NaN)); // NaN => +Infinity
$262.agent.leaving();
});
`);
const i32a = new Int32Array(
new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4)
);
$262.agent.broadcast(i32a.buffer);
$262.agent.sleep(500); // Ample time
assert.sameValue(Atomics.wake(i32a, 0), 1);
assert.sameValue(getReport(), "ok");