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63 lines
2.3 KiB
TypeScript
63 lines
2.3 KiB
TypeScript
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// Copyright Joyent, Inc. and other Node contributors.
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// Modifications copyright (c) by Microsoft Corporation
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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import { EventEmitter } from '../../../packages/playwright-core/lib/client/eventEmitter';
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import { test, expect } from '@playwright/test';
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test('should work', () => {
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const e = new EventEmitter();
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const num_args_emitted = [];
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e.on('numArgs', (...args) => {
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const numArgs = args.length;
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num_args_emitted.push(numArgs);
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});
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e.on('foo', function() {
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num_args_emitted.push(arguments.length);
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});
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e.on('foo', function() {
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num_args_emitted.push(arguments.length);
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});
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e.emit('numArgs');
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e.emit('numArgs', null);
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e.emit('numArgs', null, null);
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e.emit('numArgs', null, null, null);
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e.emit('numArgs', null, null, null, null);
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e.emit('numArgs', null, null, null, null, null);
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e.emit('foo', null, null, null, null);
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expect(Array.isArray(num_args_emitted)).toBeTruthy();
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expect(num_args_emitted).toHaveLength(8);
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expect(num_args_emitted[0]).toEqual(0);
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expect(num_args_emitted[1]).toEqual(1);
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expect(num_args_emitted[2]).toEqual(2);
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expect(num_args_emitted[3]).toEqual(3);
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expect(num_args_emitted[4]).toEqual(4);
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expect(num_args_emitted[5]).toEqual(5);
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expect(num_args_emitted[6]).toEqual(4);
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expect(num_args_emitted[6]).toEqual(4);
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});
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