koel/tests/Unit/Jobs/ScrobbleJobTest.php

<?php

namespace Tests\Unit\Jobs;

use App\Jobs\ScrobbleJob;
use App\Models\Song;
use App\Services\LastfmService;
use Mockery;
use Tests\TestCase;

use function Tests\create_user;

class ScrobbleJobTest extends TestCase
{
    public function testHandle(): void
    {
        $user = create_user();

        /** @var Song $song */
        $song = Song::factory()->make();
        $job = new ScrobbleJob($user, $song, 100);
        $lastfm = Mockery::mock(LastfmService::class);

        $lastfm->shouldReceive('scrobble')
            ->once()
            ->with($song, $user, 100);

        $job->handle($lastfm);
    }
}