makeabledk/laravel-factory-enhanced

v4.0.0 2022-07-15 17:19 UTC

README

Laravel Factory Enhanced - Supercharge your tests

Laravel Factory Enhanced 🔥

Latest Version on Packagist Build Status StyleCI

Bring the magic of eloquent relationships into the Laravel Factory.

Traditionally if you wanted to factory a team with some users, you'd have to manually create the individual team and users and then tie them together afterwards. This can easily lead to very verbose tests.

Laravel 7.x and earlier

$team = factory(Team::class)->create();
$users = factory(User::class)->times(2)->create();
foreach ($users as $user) {
    factory(TeamMember::class)->create([
        'team_id' => $team,
        'user_id' => $user,
        'role' => 'admin'
    ]);
}

Laravel 8.0 and later

$team = Team::factory()
    ->hasAttached(
        User::factory()->count(2),
        ['active' => true]
    )
    ->create();

Laravel Factory Enhanced

$team = Team::factory()
    ->with(2, 'users', ['pivot.role' => 'admin'])
    ->create();

Installation

You may install the package via composer

composer require makeabledk/laravel-factory-enhanced

Versions

Laravel 8+ class based factories

Version 4 and later of this package is compatible with the new class-based syntax introduced with Laravel 8.

Pre-Laravel 7 factories

Version 3 and earlier of this package is compatible with the legacy $factory->define() syntax. Please find docs here v3 documentation:

Upgrade guide to v4

The majority of the refactoring needed to upgrade to v4 of this package, lies in rewriting factories to be compatible with Laravel class-based factories.

If you use Laravel Shift when upgrading to Laravel 8, a lot of this work will be automated, and you will be well on you way.

Rewriting to class based factories

Please use Laravel Shift for upgrading Laravel versions, or refer to the official documentation on how to write factories using the class-based approach.

Applying states

Replace all occurrences of ->state('some-state') with ->someState() in your test suite.

Presets

The concept of presets which was introduced by this package may now simply be rewritten to states.

As such, replace all occurrences of ->preset('some-preset') with ->somePreset() in your test suite.

Times method

Replace all occurrences of ->times(x) with ->count(x) in your test suite.

Factory helper syntax

This change is completely optional. If you wish, you may change all occurrence of factory(SomeModel::class) to SomeModel::factory() in your test suite.

If you choose to do so, remember to add use \Makeable\LaravelFactory\Factory; to all models.

Other breaking changes

The odds() method has been removed from the Factory instance.

Usage

Once the package is installed, your factories should extend Makeable\LaravelFactory\Factory rather than the native Laravel Factory class.

Additionally, please make sure to use the corresponding Makeable\LaravelFactory\HasFactory trait on your models.

For example:

app/Models/User.php

<?php

namespace App\Models;

use Makeable\LaravelFactory\HasFactory;

class User 
{
    use HasFactory;
    
    // ...
}

database/factories/UserFactory.php

<?php

namespace Database\Factories;

use Makeable\LaravelFactory\Factory;

class UserFactory extends Factory
{
    public function definition()
    {
        return [
            // ...
        ];
    }
}

You may now use all the native Laravel features you are used to, along with the additional functionality this package provides.

If you're not familiar with Laravel factories, please refer to the official documentation: https://laravel.com/docs/master/database-testing

Simple relationships

You may use the enhanced factory to create any additional relationships defined on the model.

Example: A Server model with a sites() relationship (has-many)

Server::factory()->with(3, 'sites')->create();

Note that you may still use any native functionality that you are used to, such as states and attributes:

Server::factory()->online()->with(3, 'sites')->create([
    'name' => 'production-1'
]);

Multiple relationships

You are free to specify multiple relationships on the same factory.

Given our previous Server model has another relationship called team (belongs-to), you may do:

Server::factory()
    ->with('team')
    ->with(3, 'sites')
    ->create();

Now you would have 1 team that has 1 server which has 3 sites.

Nested relationships

Moving on to the more advanced use-cases, you may also do nested relationships.

For instance we could rewrite our example from before using nesting:

Team::factory()
    ->with(3, 'servers.sites')
    ->create();

Please note that the count '3' applies to the final relationship, in this case sites.

If you are wanting 2 servers each of which has 3 sites, you may write it as following:

Team::factory()    
    ->with(2, 'servers')
    ->with(3, 'servers.sites')
    ->create();

States in relationships

Just as you may specify pre-defined states on the factoring model (see official documentation), you may also apply the very same states on the relation.

Team::factory()    
    ->with(2, 'online', 'servers')
    ->create();

You may finding yourself wanting a relationship in multiple states. In this case you may use the andWith() method.

Team::factory()    
    ->with(2, 'online', 'servers')
    ->andWith(1, 'offline', 'servers')
    ->create();

By using the andWith we will create a 'clean cut', so that no further calls to with can interfere with relations specified prior to the andWith.

In the above example any further nesting of relations will apply to the 'offline' server.

Team::factory()    
    ->with(2, 'online', 'servers')
    ->andWith(1, 'offline', 'servers')
    ->with(3, 'servers.sites')
    ->create();

The above example will create 1x team that has

  • 2x online servers
  • 1x offline servers with 3 sites

Filling attributes in relationships

You may fill attributes on a relationship by passing them as an argument to the with() method.

factory(Team::class)    
    ->with(2, 'servers', ['name' => 'laravel.com'])
    ->create();

If the relation is a belongs-to-many relationship, you may also fill attributes on the pivot model by prefixing the attribute name with pivot..

Team::factory()    
    ->with(2, 'users', ['pivot.role' => 'admin'])
    ->create();

Using apply()

All of the above examples of how you might configure a relationship using the with() method, can also be applied on the base model using the apply() method.

For example:

Server::factory()
    ->apply(2, 'online', ['name' => 'laravel.com'])
    ->with(3, 'mysql', 'databases')
    ->create();

This would create 2 online servers each with 3 mysql databases.

In fact, by using the HasFactory trait from this package, you can even pass these arguments to the ::factory() method itself:

Server::factory(2, 'online', ['name' => 'laravel.com'])
    ->with(3, 'mysql', 'databases')
    ->create();

Using closures for customization

In addition to passing count and state directly into the with function, you may also pass a closure that will receive the FactoryBuilder instance directly.

In the closure you can do everything you are used to on the FactoryBuilder - including nesting further relationships should you wish to.

Team::factory()    
    ->with('servers', fn (ServerFactory $servers) => $servers
        ->count(2)
        ->active()
        ->with(3, 'sites')
    )
    ->create();

Factoring models with no defined factory

Traditionally trying to use Model::factory() on a model with no defined factory would throw an exception. Not anymore!

After installing this package, you are completely free to use the static Model::factory() method on any Eloquent model that uses the Makeable\LaravelFactory\HasFactory trait.

Furthermore, this package brings back the good old factory(Model::class) helper function which you may use on any model, whether or not the model has a defined factory or uses the HasFactory trait.

Example

factory(2, Server::class)->with(1, 'sites')->create();

Available methods

These are the provided methods on the Factory instance in addition to the core methods.

  • apply
  • fill
  • fillPivot (only applicable on BelongsToMany
  • pipe
  • tap
  • with
  • andWith

Testing

You can run the tests with:

composer test

Contributing

We are happy to receive pull requests for additional functionality. Please see CONTRIBUTING for details.

Credits

License

Attribution-ShareAlike 4.0 International. Please see License File for more information.