// 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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var common = require('./common');
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var assert = require('assert');
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var events = require('../');
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// Redirect warning output to tape.
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var consoleWarn = console.warn;
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console.warn = common.test.comment;
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common.test.on('end', function () {
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console.warn = consoleWarn;
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});
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// default
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{
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var e = new events.EventEmitter();
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for (var i = 0; i < 10; i++) {
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e.on('default', common.mustNotCall());
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}
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assert.ok(!e._events['default'].hasOwnProperty('warned'));
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e.on('default', common.mustNotCall());
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assert.ok(e._events['default'].warned);
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// specific
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e.setMaxListeners(5);
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for (var i = 0; i < 5; i++) {
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e.on('specific', common.mustNotCall());
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}
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assert.ok(!e._events['specific'].hasOwnProperty('warned'));
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e.on('specific', common.mustNotCall());
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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', common.mustNotCall());
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assert.ok(!e._events['only one'].hasOwnProperty('warned'));
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e.on('only one', common.mustNotCall());
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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 (var i = 0; i < 1000; i++) {
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e.on('unlimited', common.mustNotCall());
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}
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assert.ok(!e._events['unlimited'].hasOwnProperty('warned'));
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}
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// process-wide
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{
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events.EventEmitter.defaultMaxListeners = 42;
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var e = new events.EventEmitter();
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for (var i = 0; i < 42; ++i) {
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e.on('fortytwo', common.mustNotCall());
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}
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assert.ok(!e._events['fortytwo'].hasOwnProperty('warned'));
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e.on('fortytwo', common.mustNotCall());
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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', common.mustNotCall());
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assert.ok(!e._events['fortytwo'].hasOwnProperty('warned'));
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e.on('fortytwo', common.mustNotCall());
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assert.ok(e._events['fortytwo'].hasOwnProperty('warned'));
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}
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// but _maxListeners still has precedence over defaultMaxListeners
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{
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events.EventEmitter.defaultMaxListeners = 42;
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var e = new events.EventEmitter();
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e.setMaxListeners(1);
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e.on('uno', common.mustNotCall());
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assert.ok(!e._events['uno'].hasOwnProperty('warned'));
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e.on('uno', common.mustNotCall());
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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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}
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