koel/tests/Feature/GenreTest.php

<?php

namespace Tests\Feature;

use App\Models\Song;
use App\Values\Genre;

class GenreTest extends TestCase
{
    private const JSON_STRUCTURE = [
        'type',
        'name',
        'song_count',
        'length',
    ];

    public function testGetAllGenres(): void
    {
        Song::factory()->count(5)->create(['genre' => 'Rock']);
        Song::factory()->count(2)->create(['genre' => 'Pop']);
        Song::factory()->count(10)->create(['genre' => '']);

        $this->getAs('api/genres')
            ->assertJsonStructure(['*' => self::JSON_STRUCTURE])
            ->assertJsonFragment(['name' => 'Rock', 'song_count' => 5])
            ->assertJsonFragment(['name' => 'Pop', 'song_count' => 2])
            ->assertJsonFragment(['name' => Genre::NO_GENRE, 'song_count' => 10]);
    }

    public function testGetOneGenre(): void
    {
        Song::factory()->count(5)->create(['genre' => 'Rock']);

        $this->getAs('api/genres/Rock')
            ->assertJsonStructure(self::JSON_STRUCTURE)
            ->assertJsonFragment(['name' => 'Rock', 'song_count' => 5]);
    }

    public function testGetNonExistingGenreThrowsNotFound(): void
    {
        $this->getAs('api/genres/NonExistingGenre')->assertNotFound();
    }

    public function testPaginateSongsInGenre(): void
    {
        Song::factory()->count(5)->create(['genre' => 'Rock']);

        $this->getAs('api/genres/Rock/songs')
            ->assertJsonStructure(SongTest::JSON_COLLECTION_STRUCTURE);
    }

    public function testGetRandomSongsInGenre(): void
    {
        Song::factory()->count(5)->create(['genre' => 'Rock']);

        $this->getAs('api/genres/Rock/songs/random?limit=500')
            ->assertJsonStructure(['*' => SongTest::JSON_STRUCTURE]);
    }
}