factory-girl
factory-girl is a factory library for Node.js and the browser that is inspired by Factory_girl. It works asynchronously and supports associations and the use of functions for generating attributes.
It started out as a fork of factory-lady, but the fork deviated quite a bit. This module uses an adapter to talk to your models so it can support different ORMs such as Bookshelf, Sequelize, JugglingDB, and Mongoose (and doesn't use throw for errors that might occur during save).
Under construction with Backbone.Model - Tests are broken
Installation
Node.js:
npm install factory-girlTo use factory-girl in the browser or other JavaScript environments, just include index.js and access window.Factory.
Require.js
Include into your paths:
paths: {
...
'factory-girl-object-adapter': 'path/to/lib/object-adapter',
'factory-girl': 'path/to/factory-girl'
...
}
Defining Factories
var factory = require('factory-girl'),
User = require('../../app/models/user'),
Post = require('../../app/models/post');
var emailCounter = 1;
// define a factory using define()
factory.define('user', User, {
// define attributes using properties
state: 'active',
// ...or functions
email: function() {
return 'user' + emailCounter++ + '@demo.com';
},
// provide async functions by accepting a callback
async: function(callback) {
somethingAsync(callback);
}
});
console.log(factory.build('user')); // => {state: 'active', email: 'user1@demo.com', async: 'foo'}
factory.define('post', Post, {
// create associations using factory.assoc(model, attr)
// or factory.assoc('user') for user object itself
user_id: factory.assoc('user', 'id'),
subject: 'Hello World',
// you can refer to other attributes using `this`
slug: function() {
return slugify(this.subject);
}
});
console.log(factory.build('post')); // => {user_id: 1, subject: 'Hello World', slug: 'hello-world'}Using Factories
factory.build('post', function(err, post) {
// post is a Post instance that is not saved
});
factory.build('post', {title: 'Foo', content: 'Bar'}, function(err, post) {
// build a post and override title and content
});
factory.create('post', function(err, post) {
// post is a saved Post instance
});Factory#buildMany
Allow you to create a number of models at once.
factory.buildMany('post', 10, function(err, posts) {
// build 10 posts
});
factory.buildMany('post', [{title: 'Foo'}, {title: 'Bar'}], function(err, posts) {
// build 2 posts using the specified attributes
});
factory.buildMany('post', [{title: 'Foo'}, {title: 'Bar'}], 10, function(err, posts) {
// build 10 posts using the specified attributes for the first and second
});
factory.buildMany('post', {title: 'Foo'}, 10, function(err, posts) {
// build 10 posts using the specified attributes for all of them
});Factory#createMany
factory.createMany takes the same arguments as buildMany, but returns saved models.
Factory#buildSync
When you have factories that don't use async property functions, you can use buildSync().
Be aware that assoc() is an async function, so it can't be used with buildSync().
var doc = factory.buildSync('post', {title: 'Foo'});Creating new Factories and Adapters
Adapters provide support for different databases and ORMs.
var anotherFactory = new factory.Factory();
var BookshelfAdapter = require('factory-girl-bookshelf').BookshelfAdapter;
anotherFactory.setAdapter(BookshelfAdapter); // use the Bookshelf adapterOr use the ObjectAdapter that simply returns raw objects.
var ObjectAdapter = factory.ObjectAdapter;
anotherFactory.setAdapter(ObjectAdapter, 'post'); // use the ObjectAdapter for posts
License
Copyright (c) 2014 Simon Wade. This software is licensed under the MIT License.
Copyright (c) 2011 Peter Jihoon Kim. This software is licensed under the MIT License.
