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254ab63832
Allows Symbol to be converted to String so it can be included in the error. Fixes: https://github.com/nodejs/node/issues/9003 PR-URL: https://github.com/nodejs/node/pull/9021 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com> Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
76 lines
2.1 KiB
JavaScript
76 lines
2.1 KiB
JavaScript
'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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var e = new events.EventEmitter();
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// default
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for (let i = 0; i < 10; i++) {
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e.on('default', function() {});
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}
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assert.ok(!e._events['default'].hasOwnProperty('warned'));
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e.on('default', function() {});
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assert.ok(e._events['default'].warned);
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// symbol
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const symbol = Symbol('symbol');
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e.setMaxListeners(1);
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e.on(symbol, function() {});
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assert.ok(!e._events[symbol].hasOwnProperty('warned'));
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e.on(symbol, function() {});
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assert.ok(e._events[symbol].hasOwnProperty('warned'));
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// specific
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e.setMaxListeners(5);
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for (let i = 0; i < 5; i++) {
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e.on('specific', function() {});
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}
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assert.ok(!e._events['specific'].hasOwnProperty('warned'));
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e.on('specific', function() {});
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assert.ok(e._events['specific'].warned);
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// only one
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e.setMaxListeners(1);
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e.on('only one', function() {});
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assert.ok(!e._events['only one'].hasOwnProperty('warned'));
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e.on('only one', function() {});
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assert.ok(e._events['only one'].hasOwnProperty('warned'));
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// unlimited
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e.setMaxListeners(0);
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for (let i = 0; i < 1000; i++) {
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e.on('unlimited', function() {});
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}
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assert.ok(!e._events['unlimited'].hasOwnProperty('warned'));
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// process-wide
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events.EventEmitter.defaultMaxListeners = 42;
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e = new events.EventEmitter();
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for (let i = 0; i < 42; ++i) {
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e.on('fortytwo', function() {});
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}
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assert.ok(!e._events['fortytwo'].hasOwnProperty('warned'));
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e.on('fortytwo', function() {});
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assert.ok(e._events['fortytwo'].hasOwnProperty('warned'));
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delete e._events['fortytwo'].warned;
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events.EventEmitter.defaultMaxListeners = 44;
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e.on('fortytwo', function() {});
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assert.ok(!e._events['fortytwo'].hasOwnProperty('warned'));
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e.on('fortytwo', function() {});
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assert.ok(e._events['fortytwo'].hasOwnProperty('warned'));
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// but _maxListeners still has precedence over defaultMaxListeners
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events.EventEmitter.defaultMaxListeners = 42;
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e = new events.EventEmitter();
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e.setMaxListeners(1);
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e.on('uno', function() {});
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assert.ok(!e._events['uno'].hasOwnProperty('warned'));
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e.on('uno', function() {});
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assert.ok(e._events['uno'].hasOwnProperty('warned'));
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// chainable
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assert.strictEqual(e, e.setMaxListeners(1));
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