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nodejs/test/parallel/test-promise-hook-on-init.js
Stephen Belanger da82844493 v8: multi-tenant promise hook api
PR-URL: https://github.com/nodejs/node/pull/39283
Reviewed-By: Gerhard Stöbich <deb2001-github@yahoo.de>
Reviewed-By: Vladimir de Turckheim <vlad2t@hotmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
2021-11-01 11:08:59 -07:00

38 lines
932 B
JavaScript

'use strict';
const common = require('../common');
const assert = require('assert');
const { promiseHooks } = require('v8');
assert.throws(() => {
promiseHooks.onInit(async function() { });
}, /The "initHook" argument must be of type function/);
assert.throws(() => {
promiseHooks.onInit(async function*() { });
}, /The "initHook" argument must be of type function/);
let seenPromise;
let seenParent;
const stop = promiseHooks.onInit(common.mustCall((promise, parent) => {
seenPromise = promise;
seenParent = parent;
}, 2));
const parent = Promise.resolve();
assert.strictEqual(seenPromise, parent);
assert.strictEqual(seenParent, undefined);
const child = parent.then();
assert.strictEqual(seenPromise, child);
assert.strictEqual(seenParent, parent);
seenPromise = undefined;
seenParent = undefined;
stop();
Promise.resolve();
assert.strictEqual(seenPromise, undefined);
assert.strictEqual(seenParent, undefined);