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cea853cb02
PR-URL: https://github.com/nodejs/node/pull/32769 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com> Reviewed-By: Gerhard Stöbich <deb2001-github@yahoo.de> Reviewed-By: Richard Lau <riclau@uk.ibm.com>
21 lines
615 B
JavaScript
21 lines
615 B
JavaScript
'use strict';
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require('../common');
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const assert = require('assert');
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const EventEmitter = require('events');
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const eventsMethods = ['on', 'once', 'removeListener', 'prependOnceListener'];
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// Verify that the listener must be a function for events methods
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for (const method of eventsMethods) {
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assert.throws(() => {
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const ee = new EventEmitter();
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ee[method]('foo', null);
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}, {
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code: 'ERR_INVALID_ARG_TYPE',
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name: 'TypeError',
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message: 'The "listener" argument must be of type function. ' +
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'Received null'
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}, `event.${method}('foo', null) should throw the proper error`);
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}
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