Carpenter

A PHP library for setting up database fixtures, heavily inspired by FactoryGirl.

Installation

Add the following to a composer.json file:

{
    "require": {
        "matthewpatterson/carpenter": "*"
    }
}

Then, run composer install.

Usage

Defining Factories

Factories are free-form classes, allowing for a lot of flexibility in their definition. All you need to make a class a factory is the @Factory annotation. For example, consider this factory that won't really do much of anything:

<?php
use Carpenter\Annotation\Factory;

/** @Factory("stdclass") */
class BoringFactory
{
}

Factories can exist anywhere in your code base. However, you will need to call Carpenter\Factory::discoverFactories() prior to using them, for example in a testing bootstrap script.

Using Factories

There are two ways to use a factory: build() and create(). Both will give you an instance of the fixture you're looking for; the difference is that create() will also persist the fixture to a data store.

When invoking build() or create(), you must supply, at a minimum, the name of the factory to use. The name of the factory is derived from factory's unqualified classname. For example, \Project\Fixture\UserFactory becomes User.

<?php
$user = Carpenter\Factory::build('User');
$persistedUser = Carpenter\Factory::create('User');

A Basic Factory

The most basic thing you can do with a factory is to define properties with static values. Simple define a public instance property, and every fixture will have the value you assign to it.

<?php
use Carpenter\Annotation\Factory;

/** @Factory("\Project\Model\User") */
class UserFactory
{
    public $firstName = "John";
    public $lastName = "Doe";
    public $email = "[email protected]";
    public $status = "new";
}

$user = Carpenter\Factory::build('User');
$user->firstName == "John"; // true
$user->lastName == "Doe"; // true
$user->email == "[email protected]"; // true
$user->status == "new"; // true

Overriding Properties

A UserFactory is all well and good, but what if you want our user to have a slightly different status? You can provide an array of overrides when building and creating the fixture.

<?php
$user = Carpenter\Factory::build("User", ["status" => "verified"]);
$user->firstName == "John"; // etc.
$user->status == "verified"; // true

Dynamic Properties

Property values can also be generated dynamically, making it easy to generate random data with a tool such as Faker. All you need is a public instance property and a public instance method of the same name. Of course, you can still supply override values if needed.

<?php
use Carpenter\Annotation\Factory;

/** @Factory("\Project\Model\User") */
class UserFactory
{
    public $firstName;

    public function firstName()
    {
        $faker = Faker\Factory::create();
        return $faker->firstName;
    }
}

$user = Carpenter\Factory::build('User');
$user->firstName == "Quincy";

$user = Carpenter\Factory::build('User', ["firstName" => "George"]);
$user->firstName == "George";

Modifiers

Modifiers (similar to FactoryGirl traits) define a group of properties and are especially useful for complex domain models. To create a modifier, simply add the @Modifier annotation to a public instance method. Modifiers act by mutating the instance of the class. When calling build() or create(), you can specify modifiers which will be applied in the order given.

<?php
use Carpenter\Annotation\Factory;
use Carpenter\Annotation\Modifier;

/** @Factory("\Project\Model\User") */
class UserFactory
{
    public $admin = false;
    public $roles = [];

    /** @Modifier */
    public function admin()
    {
        $this->admin = true;
        $this->roles = Roles::getAll();
    }

    /** @Modifier */
    public function moderator()
    {
        $this->roles = ['delete_posts', 'edit_posts', 'ban_users'];
    }
}

$adminUser = Carpenter\Factory::build('User', 'admin');
$moderatorUser = Carpenter\Factory::build('User', 'admin', 'moderator'); // Will have $admin == true but the roles of a moderator
$otherModerator = Carpenter\Factory::build('User', 'admin', ["roles" => ["ban_users"]]); // Will have $admin == true but only the ban_users role

Adapters

Adapters build the correct fixture and persist it to a data store. Currently, there are two adapters available:

• ArrayAdapter
• DoctrineAdapter

Configuration

The following values should be set prior to using Carpenter. You can do this, for example, in a testing bootstrap script.

• Carpenter\Configuration::$adapter - The adapter to use for building fixtures
• Captenter\Configuration::$factoryPaths - An array of paths to search for factories

Contributions

This project is in its very early stages. As such, pull requests and isues are always welcome via Github.