If you use Codeception installed using composer, install this module with the following command:

composer require --dev codeception/module-datafactory

Alternatively, you can enable DataFactory module in suite configuration file and run

codecept init upgrade4

This module was bundled with Codeception 2 and 3, but since version 4 it is necessary to install it separately.
Some modules are bundled with PHAR files.
Warning. Using PHAR file and composer in the same project can cause unexpected errors.


DataFactory allows you to easily generate and create test data using FactoryMuffin. DataFactory uses an ORM of your application to define, save and cleanup data. Thus, should be used with ORM or Framework modules.

This module requires packages installed:

 "league/factory-muffin": "^3.0",

Generation rules can be defined in a factories file. You will need to create factories.php (it is recommended to store it in _support dir) Follow FactoryMuffin documentation to set valid rules. Random data provided by Faker library.

use League\FactoryMuffin\Faker\Facade as Faker;

 'name'   => Faker::name(),

    // generate email
   'email'  => Faker::email(),
   'body'   => Faker::text(),

   // generate a profile and return its Id
   'profile_id' => 'factory|Profile'

Configure this module to load factory definitions from a directory. You should also specify a module with an ORM as a dependency.

        - Yii2:
            configFile: path/to/config.php
        - DataFactory:
            factories: tests/_support/factories
            depends: Yii2

(you can also use Laravel5 and Phalcon).

In this example factories are loaded from tests/_support/factories directory. Please note that this directory is relative from the codeception.yml file (so for Yii2 it would be codeception/_support/factories). You should create this directory manually and create PHP files in it with factories definitions following official documentation.

In cases you want to use data from database inside your factory definitions you can define them in Helper. For instance, if you use Doctrine, this allows you to access EntityManager inside a definition.

To proceed you should create Factories helper via generate:helper command and enable it:

        - DataFactory:
            depends: Doctrine2
        - \Helper\Factories

In this case you can define factories from a Helper class with _define method.

public function _beforeSuite()
     $factory = $this->getModule('DataFactory');
     // let us get EntityManager from Doctrine
     $em = $this->getModule('Doctrine2')->_getEntityManager();

     $factory->_define(User::class, [

         // generate random user name
         // use League\FactoryMuffin\Faker\Facade as Faker;
         'name' => Faker::name(),

         // get real company from database
         'company' => $em->getRepository(Company::class)->find(),

         // let's generate a profile for each created user
         // receive an entity and set it via `setProfile` method
         // UserProfile factory should be defined as well
         'profile' => 'entity|'.UserProfile::class

Factory Definitions are described in official Factory Muffin Documentation

If your module relies on other model you can generate them both. To create a related module you can use either factory or entity prefix, depending on ORM you use.

In case your ORM expects an Id of a related record (Eloquent) to be set use factory prefix:

'user_id' => 'factory|User'

In case your ORM expects a related record itself (Doctrine) then you should use entity prefix:

'user' => 'entity|User'



Generates and saves a record,.

$I->have('User'); // creates user
$I->have('User', ['is_active' => true]); // creates active user

Returns an instance of created user.

  • param string $name
  • param array $extraAttrs

  • return object


Generates and saves a record multiple times.

$I->haveMultiple('User', 10); // create 10 users
$I->haveMultiple('User', 10, ['is_active' => true]); // create 10 active users
  • param string $name
  • param int $times
  • param array $extraAttrs

  • return \object[]


Generates a record instance.

This does not save it in the database. Use have for that.

$user = $I->make('User'); // return User instance
$activeUser = $I->make('User', ['is_active' => true]); // return active user instance

Returns an instance of created user without creating a record in database.

  • param string $name
  • param array $extraAttrs

  • return object


@throws ModuleException

© 2011 Michael Bodnarchuk and contributors
Licensed under the MIT License.