JavaScript-fuzz generates random values for every standard, built-in type of [ECMAScript 5.1] (http://www.ecma-international.org/publications/standards/Ecma-262.htm) so you can use them to fuzz test your code.

Rather than generating only values which are probable to occur (such as recent dates), JavaScript-fuzz strives to generate values in the full legal range (e.g., including dates that are 270 millennia in the future).

Usage

var assert = require('assert'),
    random = require('JavaScript-fuzz');

assert.equal(typeof random.boolean(), 'boolean');

console.log(random());

[ false,
  [ 1.3987869234598501e+308,
    '罃喩',
    -Infinity,
    [ /((a)|(ab))((c)|(bc))/gm,
      Sun Oct 12 262864 11:55:04 GMT-0300 (ART),
      [TypeError: 䧓ꅙۜ⧁雁득롼峑兗],
      NaN,
      Mon Sep 14 -99861 15:54:18 GMT-0300 (ART) ],
    null,
    '촲脞貃Ĝ똳ꋹ発',
    '㇣国ᢣ宥缚뮀㔞',
    undefined,
    false ],
  [Function],
  [Function],
  { '魩': '伾', '㥏Ο': [Getter/Setter], '': [Getter/Setter] } ]

API

random([options])

Returns a random value. Omits functions if options.functions is false.

random.undefined()

Returns undefined.

random.null()

Returns null.

random.boolean()

Returns true or false.

random.string(options)

Returns a random String of up to options.maximumLength characters.

random.number()

Returns a random Number, including possibly NaN, -Infinity, or Infinity.

random.object([options])

Returns a random Object. Omits functions if options.functions is false.

random.object.simple(options)

Returns a random simple Object with at most options.maximumLength properties.

random.object.function(options)

Returns function () {} with at most options.maximumLength properties.

random.object.array(options)

Returns a random Array with at most options.maximumLength elements.

random.object.date()

Returns a random Date.

random.object.regexp()

Returns a random RegExp.

random.object.error(options)

Returns one of Error, RangeError, ReferenceError, SyntaxError, TypeError, or URIError, with a random message.

Omits the non-standard stack property if options.functions is false because it sometimes has a getter function.

See Also

Gremlins.js - Monkey testing library for web apps and Node.js

Copyright

Copyright 2013 David Braun

This file is part of JavaScript-fuzz.

JavaScript-fuzz is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

JavaScript-fuzz is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with JavaScript-fuzz. If not, see http://www.gnu.org/licenses/.