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

61 lines
1.2 KiB
JavaScript

'use strict';
const common = require('../common');
const assert = require('assert');
assert.strictEqual(typeof queueMicrotask, 'function');
[
undefined,
null,
0,
'x = 5',
].forEach((t) => {
assert.throws(common.mustCall(() => {
queueMicrotask(t);
}), {
code: 'ERR_INVALID_ARG_TYPE',
});
});
{
let called = false;
queueMicrotask(common.mustCall(() => {
called = true;
}));
assert.strictEqual(called, false);
}
queueMicrotask(common.mustCall(function() {
assert.strictEqual(arguments.length, 0);
}), 'x', 'y');
{
const q = [];
Promise.resolve().then(() => q.push('a'));
queueMicrotask(common.mustCall(() => q.push('b')));
Promise.reject().catch(() => q.push('c'));
queueMicrotask(common.mustCall(() => {
assert.deepStrictEqual(q, ['a', 'b', 'c']);
}));
}
const eq = [];
process.on('uncaughtException', (e) => {
eq.push(e);
});
process.on('exit', () => {
assert.strictEqual(eq.length, 2);
assert.strictEqual(eq[0].message, 'E1');
assert.strictEqual(
eq[1].message, 'Class constructor cannot be invoked without \'new\'');
});
queueMicrotask(common.mustCall(() => {
throw new Error('E1');
}));
queueMicrotask(class {});