nodejs-mozilla/test/parallel/test-microtask-queue-integr...

64 lines
1.8 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');
const implementations = [
function(fn) {
Promise.resolve().then(fn);
}
];
let expected = 0;
let done = 0;
process.on('exit', function() {
assert.strictEqual(done, expected);
});
function test(scheduleMicrotask) {
let nextTickCalled = false;
expected++;
scheduleMicrotask(function() {
process.nextTick(function() {
nextTickCalled = true;
});
setTimeout(function() {
assert(nextTickCalled);
done++;
}, 0);
});
}
// first tick case
implementations.forEach(test);
// tick callback case
setTimeout(function() {
implementations.forEach(function(impl) {
process.nextTick(test.bind(null, impl));
});
}, 0);