// Copyright Joyent, Inc. and other Node contributors.
// Modifications copyright (c) by Microsoft Corporation
//
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// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
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// 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,
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import { EventEmitter } from './utils';
import { test, expect } from '@playwright/test';

test('Listener count test', () => {
  const emitter = new EventEmitter();
  emitter.on('foo', () => {});
  emitter.on('foo', () => {});
  emitter.on('baz', () => {});
  // Allow any type
  emitter.on(123, () => {});

  expect(emitter.listenerCount('foo')).toEqual(2);
  expect(emitter.listenerCount('bar')).toEqual(0);
  expect(emitter.listenerCount('baz')).toEqual(1);
  expect(emitter.listenerCount(123)).toEqual(1);
});
