test262/test/built-ins/Atomics/wake/negative-count.js

29 lines
931 B
JavaScript

// Copyright (C) 2017 Mozilla Corporation. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-atomics.wake
description: >
Test that Atomics.wake wakes zero waiters if the count is negative
includes: [atomicsHelper.js]
features: [Atomics, SharedArrayBuffer, TypedArray]
---*/
$262.agent.start(`
$262.agent.receiveBroadcast(function(sab) {
const i32a = new Int32Array(sab);
$262.agent.report(Atomics.wait(i32a, 0, 0, 1000)); // Timeout after 1 second
$262.agent.leaving();
});
`);
const i32a = new Int32Array(
new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT)
);
$262.agent.broadcast(i32a.buffer);
$262.agent.sleep(500); // Give the agent a chance to wait
assert.sameValue(Atomics.wake(i32a, 0, -1), 0, 'Atomics.wake(i32a, 0, -1) returns 0'); // Don't actually wake it
assert.sameValue(getReport(), 'timed-out', 'getReport() returns "timed-out"');