first commit

tests/Media/MediaServiceInvalidMimeTest.php

@@ -0,0 +1,40 @@
+<?php
+declare(strict_types=1);
+
+namespace Tests\Media;
+
+use App\Media\Exception\InvalidMimeTypeException;
+use App\Media\MediaRepositoryInterface;
+use App\Media\MediaService;
+use PHPUnit\Framework\TestCase;
+use Psr\Http\Message\UploadedFileInterface;
+use Psr\Http\Message\StreamInterface;
+
+final class MediaServiceInvalidMimeTest extends TestCase
+{
+    public function testRejectsNonImageContentEvenWithImageLikeFilename(): void
+    {
+        $repo = $this->createMock(MediaRepositoryInterface::class);
+
+        $tmpFile = tempnam(sys_get_temp_dir(), 'upload_');
+        self::assertNotFalse($tmpFile);
+        file_put_contents($tmpFile, 'not an image');
+
+        $stream = $this->createMock(StreamInterface::class);
+        $stream->method('getMetadata')->with('uri')->willReturn($tmpFile);
+
+        $file = $this->createMock(UploadedFileInterface::class);
+        $file->method('getSize')->willReturn(filesize($tmpFile));
+        $file->method('getStream')->willReturn($stream);
+        $file->method('getClientFilename')->willReturn('photo.png');
+
+        $service = new MediaService($repo, sys_get_temp_dir(), '/media', 500000);
+
+        try {
+            $this->expectException(InvalidMimeTypeException::class);
+            $service->store($file, 1);
+        } finally {
+            @unlink($tmpFile);
+        }
+    }
+}