JSTests/test262/test/built-ins/Atomics/waitAsync/null-for-timeout-agent.js

// 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: >
  null timeout arg should result in an +0 timeout
info: |
  Atomics.waitAsync( typedArray, index, value, timeout )

  1. Return DoWait(async, typedArray, index, value, timeout).

  DoWait ( mode, typedArray, index, value, timeout )

  6. Let q be ? ToNumber(timeout).

    Null -> Return +0.

flags: [async]
includes: [atomicsHelper.js]
features: [Atomics.waitAsync, SharedArrayBuffer, TypedArray, Atomics, arrow-function, async-functions]
---*/
assert.sameValue(typeof Atomics.waitAsync, 'function', 'The value of `typeof Atomics.waitAsync` is "function"');

const RUNNING = 1;

$262.agent.start(`
  const valueOf = {
    valueOf() {
      return null;
    }
  };

  const toPrimitive = {
    [Symbol.toPrimitive]() {
      return null;
    }
  };

  $262.agent.receiveBroadcast(async (sab) => {
    const i32a = new Int32Array(sab);
    Atomics.add(i32a, ${RUNNING}, 1);
    $262.agent.report(await Atomics.waitAsync(i32a, 0, 0, null).value);
    $262.agent.report(await Atomics.waitAsync(i32a, 0, 0, valueOf).value);
    $262.agent.report(await Atomics.waitAsync(i32a, 0, 0, toPrimitive).value);
    $262.agent.report(Atomics.waitAsync(i32a, 0, 0, null).value);
    $262.agent.report(Atomics.waitAsync(i32a, 0, 0, valueOf).value);
    $262.agent.report(Atomics.waitAsync(i32a, 0, 0, toPrimitive).value);
    $262.agent.leaving();
  });
`);

const i32a = new Int32Array(
  new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4)
);

$262.agent.safeBroadcastAsync(i32a, RUNNING, 1).then(async (agentCount) => {
  assert.sameValue(agentCount, 1, 'The value of `agentCount` is 1');

  assert.sameValue(
    await $262.agent.getReportAsync(),
    'timed-out',
    '(await $262.agent.getReportAsync()) resolves to the value "timed-out"'
  );
  assert.sameValue(
    await $262.agent.getReportAsync(),
    'timed-out',
    '(await $262.agent.getReportAsync()) resolves to the value "timed-out"'
  );
  assert.sameValue(
    await $262.agent.getReportAsync(),
    'timed-out',
    '(await $262.agent.getReportAsync()) resolves to the value "timed-out"'
  );
  assert.sameValue(
    await $262.agent.getReportAsync(),
    'timed-out',
    '(await $262.agent.getReportAsync()) resolves to the value "timed-out"'
  );
  assert.sameValue(
    await $262.agent.getReportAsync(),
    'timed-out',
    '(await $262.agent.getReportAsync()) resolves to the value "timed-out"'
  );
  assert.sameValue(
    await $262.agent.getReportAsync(),
    'timed-out',
    '(await $262.agent.getReportAsync()) resolves to the value "timed-out"'
  );

  assert.sameValue(Atomics.notify(i32a, 0), 0, 'Atomics.notify(new Int32Array(new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4)), 0) must return 0');

}).then($DONE, $DONE);