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// deno-fmt-ignore-file// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.// Taken from Node 18.12.0// This file is automatically generated by "node/_tools/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';require('../common');const assert = require('assert');const events = require('events');
let callbacks_called = [];
const e = new events.EventEmitter();
function callback1() {  callbacks_called.push('callback1');  e.on('foo', callback2);  e.on('foo', callback3);  e.removeListener('foo', callback1);}
function callback2() {  callbacks_called.push('callback2');  e.removeListener('foo', callback2);}
function callback3() {  callbacks_called.push('callback3');  e.removeListener('foo', callback3);}
e.on('foo', callback1);assert.strictEqual(e.listeners('foo').length, 1);
e.emit('foo');assert.strictEqual(e.listeners('foo').length, 2);assert.deepStrictEqual(['callback1'], callbacks_called);
e.emit('foo');assert.strictEqual(e.listeners('foo').length, 0);assert.deepStrictEqual(['callback1', 'callback2', 'callback3'],                       callbacks_called);
e.emit('foo');assert.strictEqual(e.listeners('foo').length, 0);assert.deepStrictEqual(['callback1', 'callback2', 'callback3'],                       callbacks_called);
e.on('foo', callback1);e.on('foo', callback2);assert.strictEqual(e.listeners('foo').length, 2);e.removeAllListeners('foo');assert.strictEqual(e.listeners('foo').length, 0);
// Verify that removing callbacks while in emit allows emits to propagate to// all listenerscallbacks_called = [];
e.on('foo', callback2);e.on('foo', callback3);assert.strictEqual(e.listeners('foo').length, 2);e.emit('foo');assert.deepStrictEqual(['callback2', 'callback3'], callbacks_called);assert.strictEqual(e.listeners('foo').length, 0);