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PR-URL: https://github.com/nodejs/node/pull/28368 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
55 lines
1.9 KiB
JavaScript
55 lines
1.9 KiB
JavaScript
// Copyright Joyent, Inc. and other Node contributors.
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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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'use strict';
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require('../common');
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const assert = require('assert');
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const events = require('events');
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const e = new events.EventEmitter();
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const num_args_emitted = [];
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e.on('numArgs', function() {
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const numArgs = arguments.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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process.on('exit', function() {
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assert.deepStrictEqual(num_args_emitted, [0, 1, 2, 3, 4, 5, 4, 4]);
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});
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