koel/tests/TestCase.php

<?php

use Illuminate\Support\Facades\Artisan;
use Illuminate\Foundation\Testing\TestCase as IlluminateTestCase;
use App\Models\User;
use App\Models\Artist;
use App\Models\Album;
use App\Models\Song;

abstract class TestCase extends IlluminateTestCase
{
    protected $mediaPath;
    protected $coverPath;

    public function __construct()
    {
        parent::__construct();

        $this->mediaPath = dirname(__FILE__).'/songs';
    }

    public function setUp()
    {
        parent::setUp();
        $this->prepareForTests();
    }

    /**
     * The base URL to use while testing the application.
     *
     * @var string
     */
    protected $baseUrl = 'http://localhost';

    /**
     * Creates the application.
     *
     * @return \Illuminate\Foundation\Application
     */
    public function createApplication()
    {
        $app = require __DIR__.'/../bootstrap/app.php';

        $app->make(Illuminate\Contracts\Console\Kernel::class)->bootstrap();

        $this->coverPath = $app->publicPath().'/img/covers';

        return $app;
    }

    private function prepareForTests()
    {
        Artisan::call('migrate');

        if (!User::all()->count()) {
            Artisan::call('db:seed');
        }

        if (!file_exists($this->coverPath)) {
            mkdir($this->coverPath, 0777, true);
        }
    }

    /**
     * Create a sample media set, with a complete artist+album+song trio.
     */
    protected function createSampleMediaSet()
    {
        $artist = factory(Artist::class)->create();

        // Sample 3 albums
        $albums = factory(Album::class, 3)->create([
            'artist_id' => $artist->id,
        ]);

        // 7-15 songs per albums
        foreach ($albums as $album) {
            factory(Song::class, rand(7, 15))->create([
                'album_id' => $album->id,
            ]);
        };
    }
}