nodejs/test/parallel/test-microtask-queue-run.js

60 lines
1.7 KiB
JavaScript

// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
require('../common');
const assert = require('assert');
function enqueueMicrotask(fn) {
Promise.resolve().then(fn);
}
let done = 0;
process.on('exit', function() {
assert.strictEqual(done, 2);
});
// No nextTick, microtask
setTimeout(function() {
enqueueMicrotask(function() {
done++;
});
}, 0);
// No nextTick, microtask with nextTick
setTimeout(function() {
let called = false;
enqueueMicrotask(function() {
process.nextTick(function() {
called = true;
});
});
setTimeout(function() {
if (called)
done++;
}, 0);
}, 0);