Testing

Don't run Shaka Streamer in tests. Fake laravel-media with Media::fake(), and let FakeStreamer answer Shaka Streamer:

use Foxws\Media\Facades\Media;
use Foxws\Streamer\StreamerExecutable;
use Foxws\Streamer\Testing\FakeStreamer;
use Illuminate\Support\Facades\Storage;

it('encodes uploads into streams', function () {
    Storage::fake('media');

    $fake = FakeStreamer::respond(Media::fake());

    StreamVideo::dispatchSync($video);

    $fake->assertRan(StreamerExecutable::ShakaStreamer);
    Storage::disk('media')->assertExists("streams/{$video->id}/master.m3u8");
});

FakeStreamer writes the manifests of the pipeline config and a placeholder file per resolution (video_720p.mp4), so save() uploads them to the target disk like a real run.

To check what Shaka Streamer would be asked to do, read the configs from the builder:

$config = Media::fromDisk('media')->open('clip.mp4')->streamer()->addStreamsFrom()->withHlsPlaylist()->config();

expect($config['pipeline']['resolutions'])->toBe(['720p', '480p']);

To test failures, make the next run fail:

$fake->failNext(StreamerExecutable::ShakaStreamer, 'RuntimeError: ffmpeg failed');

laravel-media's other assertions work too, such as assertNotRan(), assertRanTimes() and assertSaved().