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app_vue/node_modules/events/tests/num-args.js

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+// 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.
+
+require('./common');
+var assert = require('assert');
+var events = require('../');
+
+var e = new events.EventEmitter();
+var num_args_emitted = [];
+
+e.on('numArgs', function() {
+  var numArgs = arguments.length;
+  num_args_emitted.push(numArgs);
+});
+
+e.on('foo', function() {
+  num_args_emitted.push(arguments.length);
+});
+
+e.on('foo', function() {
+  num_args_emitted.push(arguments.length);
+});
+
+e.emit('numArgs');
+e.emit('numArgs', null);
+e.emit('numArgs', null, null);
+e.emit('numArgs', null, null, null);
+e.emit('numArgs', null, null, null, null);
+e.emit('numArgs', null, null, null, null, null);
+
+e.emit('foo', null, null, null, null);
+
+assert.ok(Array.isArray(num_args_emitted));
+assert.strictEqual(num_args_emitted.length, 8);
+assert.strictEqual(num_args_emitted[0], 0);
+assert.strictEqual(num_args_emitted[1], 1);
+assert.strictEqual(num_args_emitted[2], 2);
+assert.strictEqual(num_args_emitted[3], 3);
+assert.strictEqual(num_args_emitted[4], 4);
+assert.strictEqual(num_args_emitted[5], 5);
+assert.strictEqual(num_args_emitted[6], 4);
+assert.strictEqual(num_args_emitted[6], 4);