Refactor additional postprocessing

tests/Unit/AdditionalProcessing/MediaExtractionServiceTest.php

@@ -0,0 +1,66 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Unit\AdditionalProcessing;
+
+use App\Services\AdditionalProcessing\MediaExtractionService;
+use App\Services\Categorization\CategorizationService;
+use App\Services\ReleaseExtraService;
+use App\Services\ReleaseImageService;
+use Illuminate\Filesystem\Filesystem;
+use Illuminate\Foundation\Application;
+use Illuminate\Support\Facades\Facade;
+use Mockery;
+use PHPUnit\Framework\Attributes\Test;
+use PHPUnit\Framework\TestCase;
+
+class MediaExtractionServiceTest extends TestCase
+{
+    use CreatesProcessingConfiguration;
+
+    private string $tmpPath;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $container = new Application(sys_get_temp_dir());
+        $container->instance('files', new Filesystem);
+        Facade::setFacadeApplication($container);
+
+        $this->tmpPath = sys_get_temp_dir().'/additional-media-'.uniqid('', true).'/';
+        (new Filesystem)->makeDirectory($this->tmpPath, 0777, true, true);
+    }
+
+    protected function tearDown(): void
+    {
+        (new Filesystem)->deleteDirectory($this->tmpPath);
+        Mockery::close();
+
+        parent::tearDown();
+    }
+
+    #[Test]
+    public function it_recognizes_jpeg_png_and_webp_samples_by_signature(): void
+    {
+        $fixtures = [
+            'sample.jpg' => "\xFF\xD8\xFF\xE0\x00\x10JFIF\x00",
+            'sample.png' => "\x89PNG\r\n\x1A\n\x00\x00\x00\rIHDR",
+            'sample.webp' => "RIFF\x1A\x00\x00\x00WEBPVP8 ",
+        ];
+        $service = new MediaExtractionService(
+            $this->makeConfig(),
+            Mockery::mock(ReleaseImageService::class),
+            Mockery::mock(ReleaseExtraService::class),
+            Mockery::mock(CategorizationService::class),
+        );
+
+        foreach ($fixtures as $filename => $contents) {
+            $path = $this->tmpPath.$filename;
+            file_put_contents($path, $contents);
+
+            $this->assertTrue($service->isValidImage($path), $filename.' should be recognized');
+        }
+    }
+}