mirror of
https://github.com/denoland/deno.git
synced 2024-12-15 03:48:02 -05:00
77 lines
2.4 KiB
JavaScript
77 lines
2.4 KiB
JavaScript
// deno-fmt-ignore-file
|
|
// deno-lint-ignore-file
|
|
|
|
// Copyright Joyent and Node contributors. All rights reserved. MIT license.
|
|
// Taken from Node 18.12.1
|
|
// This file is automatically generated by `tools/node_compat/setup.ts`. Do not modify this file manually.
|
|
|
|
// 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';
|
|
const common = require('../common');
|
|
const assert = require('assert');
|
|
const EventEmitter = require('events');
|
|
|
|
const e = new EventEmitter();
|
|
|
|
e.once('hello', common.mustCall());
|
|
|
|
e.emit('hello', 'a', 'b');
|
|
e.emit('hello', 'a', 'b');
|
|
e.emit('hello', 'a', 'b');
|
|
e.emit('hello', 'a', 'b');
|
|
|
|
function remove() {
|
|
assert.fail('once->foo should not be emitted');
|
|
}
|
|
|
|
e.once('foo', remove);
|
|
e.removeListener('foo', remove);
|
|
e.emit('foo');
|
|
|
|
e.once('e', common.mustCall(function() {
|
|
e.emit('e');
|
|
}));
|
|
|
|
e.once('e', common.mustCall());
|
|
|
|
e.emit('e');
|
|
|
|
{
|
|
// once() has different code paths based on the number of arguments being
|
|
// emitted. Verify that all of the cases are covered.
|
|
const maxArgs = 4;
|
|
|
|
for (let i = 0; i <= maxArgs; ++i) {
|
|
const ee = new EventEmitter();
|
|
const args = ['foo'];
|
|
|
|
for (let j = 0; j < i; ++j)
|
|
args.push(j);
|
|
|
|
ee.once('foo', common.mustCall((...params) => {
|
|
assert.deepStrictEqual(params, args.slice(1));
|
|
}));
|
|
|
|
EventEmitter.prototype.emit.apply(ee, args);
|
|
}
|
|
}
|