node/test/async-hooks/test-emit-before-after.js
Anatoli Papirovski 4de31d517f async_hooks: remove internal only error checking
This error checking is mostly unnecessary and is just a Node core
developer nicety, rather than something that is needed for the
user-land. It can be safely removed without any practical
impact while making nextTick, timers, immediates and AsyncResource
substantially faster.

PR-URL: https://github.com/nodejs/node/pull/30967
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
2020-01-11 19:20:45 -08:00

39 lines
1.1 KiB
JavaScript

'use strict';
// Flags: --expose-internals
const common = require('../common');
const assert = require('assert');
const async_hooks = require('internal/async_hooks');
const initHooks = require('./init-hooks');
const expectedId = async_hooks.newAsyncId();
const expectedTriggerId = async_hooks.newAsyncId();
const expectedType = 'test_emit_before_after_type';
// Verify that if there is no registered hook, then nothing will happen.
async_hooks.emitBefore(expectedId, expectedTriggerId);
async_hooks.emitAfter(expectedId);
const chkBefore = common.mustCall((id) => assert.strictEqual(id, expectedId));
const chkAfter = common.mustCall((id) => assert.strictEqual(id, expectedId));
const checkOnce = (fn) => {
let called = false;
return (...args) => {
if (called) return;
called = true;
fn(...args);
};
};
initHooks({
onbefore: checkOnce(chkBefore),
onafter: checkOnce(chkAfter),
allowNoInit: true
}).enable();
async_hooks.emitInit(expectedId, expectedType, expectedTriggerId);
async_hooks.emitBefore(expectedId, expectedTriggerId);
async_hooks.emitAfter(expectedId);