npm-laplace

A mock generator to replace Math.random() for testing

Download

• Stable production version
• Stable development version
• Old releases

Or, if you can use npm:

$ npm install laplace

Supported browsers/Node.js

• IE10, IE9, IE8, IE7
• Chrome
• Firefox
• Safari
• Mobile Safari
• PhantomJS
• Node.js >= 0.11

License

MIT License

Usage

// If you want to use by node.js
//var laplace = require("laplace");

var mock = laplace.createMock(100);

for (var i = 0; i < 100; i += 1) {
  console.log(mock());  // 0, 0.1, 0.2, .. , 0.99
}

mock();  // Throw a error, because execution count is overflow

Use with Sinon.js

var mock = laplace.createMock(100);
var stub = sinon.stub(Math, "random", mock);

for (var i = 0; i < 100; i += 1) {
  console.log(Math.random());  // 0, 0.1, 0.2, .. , 0.99
}

stub.restore();

And, with _.random of Underscore.js

var mock = laplace.createMock(5);
var stub = sinon.stub(Math, "random", mock);

for (var i = 0; i < 100; i += 1) {
  console.log(_.random());  // 0, 1, 2, 3, 4
}

stub.restore();

Development

Dependencies

• node.js >= 0.11.0, e.g. brew install node
• PhantomJS, e.g. brew install phantomjs

$ npm install -g grunt-cli testem

Deploy

$ git clone [email protected]:kjirou/npm-laplace.git
$ cd npm-laplace
$ npm install

Util commands

• grunt jshint validates codes by JSHint.
• grunt release generates JavaScript files for release.

Testing

• Open test/index.html
• Or, execute testem or testem server, after that, open http://localhost:7357/
• grunt test tests by node.js.
• grunt testem:web is CI test by PhantomJS only.
• grunt testem:xb is CI test by PhantomJS, Chrome, Firefox and Safari.

Related Links

• npm - laplace