mirror of https://gitee.com/openkylin/nodejs.git
59 lines
2.0 KiB
JavaScript
59 lines
2.0 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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const common = require('../common');
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const assert = require('assert');
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const events = require('events');
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const { inspect } = require('util');
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const e = new events.EventEmitter();
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e.on('maxListeners', common.mustCall());
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// Should not corrupt the 'maxListeners' queue.
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e.setMaxListeners(42);
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const throwsObjs = [NaN, -1, 'and even this'];
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for (const obj of throwsObjs) {
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assert.throws(
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() => e.setMaxListeners(obj),
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{
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code: 'ERR_OUT_OF_RANGE',
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name: 'RangeError',
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message: 'The value of "n" is out of range. ' +
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`It must be a non-negative number. Received ${inspect(obj)}`
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}
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);
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assert.throws(
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() => events.defaultMaxListeners = obj,
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{
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code: 'ERR_OUT_OF_RANGE',
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name: 'RangeError',
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message: 'The value of "defaultMaxListeners" is out of range. ' +
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`It must be a non-negative number. Received ${inspect(obj)}`
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}
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);
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}
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e.emit('maxListeners');
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