| // Copyright Joyent, Inc. and other Node contributors. |
| // |
| // Permission is hereby granted, free of charge, to any person obtaining a |
| // copy of this software and associated documentation files (the |
| // "Software"), to deal in the Software without restriction, including |
| // without limitation the rights to use, copy, modify, merge, publish, |
| // distribute, sublicense, and/or sell copies of the Software, and to permit |
| // persons to whom the Software is furnished to do so, subject to the |
| // following conditions: |
| // |
| // The above copyright notice and this permission notice shall be included |
| // in all copies or substantial portions of the Software. |
| // |
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN |
| // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
| // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| // USE OR OTHER DEALINGS IN THE SOFTWARE. |
| |
| var common = require('./common'); |
| var assert = require('assert'); |
| var events = require('../'); |
| |
| // Redirect warning output to tape. |
| var consoleWarn = console.warn; |
| console.warn = common.test.comment; |
| |
| common.test.on('end', function () { |
| console.warn = consoleWarn; |
| }); |
| |
| // default |
| { |
| var e = new events.EventEmitter(); |
| |
| for (var i = 0; i < 10; i++) { |
| e.on('default', common.mustNotCall()); |
| } |
| assert.ok(!e._events['default'].hasOwnProperty('warned')); |
| e.on('default', common.mustNotCall()); |
| assert.ok(e._events['default'].warned); |
| |
| // specific |
| e.setMaxListeners(5); |
| for (var i = 0; i < 5; i++) { |
| e.on('specific', common.mustNotCall()); |
| } |
| assert.ok(!e._events['specific'].hasOwnProperty('warned')); |
| e.on('specific', common.mustNotCall()); |
| assert.ok(e._events['specific'].warned); |
| |
| // only one |
| e.setMaxListeners(1); |
| e.on('only one', common.mustNotCall()); |
| assert.ok(!e._events['only one'].hasOwnProperty('warned')); |
| e.on('only one', common.mustNotCall()); |
| assert.ok(e._events['only one'].hasOwnProperty('warned')); |
| |
| // unlimited |
| e.setMaxListeners(0); |
| for (var i = 0; i < 1000; i++) { |
| e.on('unlimited', common.mustNotCall()); |
| } |
| assert.ok(!e._events['unlimited'].hasOwnProperty('warned')); |
| } |
| |
| // process-wide |
| { |
| events.EventEmitter.defaultMaxListeners = 42; |
| var e = new events.EventEmitter(); |
| |
| for (var i = 0; i < 42; ++i) { |
| e.on('fortytwo', common.mustNotCall()); |
| } |
| assert.ok(!e._events['fortytwo'].hasOwnProperty('warned')); |
| e.on('fortytwo', common.mustNotCall()); |
| assert.ok(e._events['fortytwo'].hasOwnProperty('warned')); |
| delete e._events['fortytwo'].warned; |
| |
| events.EventEmitter.defaultMaxListeners = 44; |
| e.on('fortytwo', common.mustNotCall()); |
| assert.ok(!e._events['fortytwo'].hasOwnProperty('warned')); |
| e.on('fortytwo', common.mustNotCall()); |
| assert.ok(e._events['fortytwo'].hasOwnProperty('warned')); |
| } |
| |
| // but _maxListeners still has precedence over defaultMaxListeners |
| { |
| events.EventEmitter.defaultMaxListeners = 42; |
| var e = new events.EventEmitter(); |
| e.setMaxListeners(1); |
| e.on('uno', common.mustNotCall()); |
| assert.ok(!e._events['uno'].hasOwnProperty('warned')); |
| e.on('uno', common.mustNotCall()); |
| assert.ok(e._events['uno'].hasOwnProperty('warned')); |
| |
| // chainable |
| assert.strictEqual(e, e.setMaxListeners(1)); |
| } |