Make sure the attachment tests work.

app/Http/Controllers/AttachmentController.php

@@ -95,16 +95,12 @@ class AttachmentController extends Controller
      * @throws FireflyException
      *
      */
-    public function download(Attachment $attachment)
+    public function download(AttachmentRepositoryInterface $repository, Attachment $attachment)
     {
-        // create a disk.
-        $disk = Storage::disk('upload');
-        $file = $attachment->fileName();
-
-        if ($disk->exists($file)) {
-
+        if ($repository->exists($attachment)) {
+            $content = $repository->getContent($attachment);
             $quoted  = sprintf('"%s"', addcslashes(basename($attachment->filename), '"\\'));
-            $content = Crypt::decrypt($disk->get($file));
+
 
             Log::debug('Send file to user', ['file' => $quoted, 'size' => strlen($content)]);
 
@@ -118,8 +114,8 @@ class AttachmentController extends Controller
                 ->header('Cache-Control', 'must-revalidate, post-check=0, pre-check=0')
                 ->header('Pragma', 'public')
                 ->header('Content-Length', strlen($content));
-
         }
+
         throw new FireflyException('Could not find the indicated attachment. The file is no longer there.');
     }
 

app/Repositories/Attachment/AttachmentRepository.php

@@ -18,6 +18,7 @@ use FireflyIII\Helpers\Attachments\AttachmentHelperInterface;
 use FireflyIII\Models\Attachment;
 use FireflyIII\User;
 use Illuminate\Support\Collection;
+use Storage;
 
 /**
  * Class AttachmentRepository
@@ -56,6 +57,19 @@ class AttachmentRepository implements AttachmentRepositoryInterface
         return true;
     }
 
+    /**
+     * @param Attachment $attachment
+     *
+     * @return bool
+     */
+    public function exists(Attachment $attachment): bool
+    {
+        /** @var Storage $disk */
+        $disk = Storage::disk('upload');
+
+        return $disk->exists($attachment->fileName());
+    }
+
     /**
      * @return Collection
      */
@@ -82,6 +96,26 @@ class AttachmentRepository implements AttachmentRepositoryInterface
         return $query;
     }
 
+    /**
+     * @param Attachment $attachment
+     *
+     * @return string
+     */
+    public function getContent(Attachment $attachment): string
+    {
+        // create a disk.
+        $disk = Storage::disk('upload');
+        $file = $attachment->fileName();
+
+        if ($disk->exists($file)) {
+            $content = Crypt::decrypt($disk->get($file));
+
+            return $content;
+        }
+
+        return '';
+    }
+
     /**
      * @param Attachment $attachment
      * @param array      $data

app/Repositories/Attachment/AttachmentRepositoryInterface.php

@@ -37,6 +37,20 @@ interface AttachmentRepositoryInterface
      */
     public function get(): Collection;
 
+    /**
+     * @param Attachment $attachment
+     *
+     * @return bool
+     */
+    public function exists(Attachment $attachment): bool;
+
+    /**
+     * @param Attachment $attachment
+     *
+     * @return string
+     */
+    public function getContent(Attachment $attachment): string;
+
     /**
      * @param Carbon $start
      * @param Carbon $end

tests/acceptance/Controllers/AttachmentControllerTest.php

@@ -58,6 +58,10 @@ class AttachmentControllerTest extends TestCase
      */
     public function testDownload()
     {
+        $repository = $this->mock(AttachmentRepositoryInterface::class);
+        $repository->shouldReceive('exists')->once()->andReturn(true);
+        $repository->shouldReceive('getContent')->once()->andReturn('This is attachment number one.');
+
         $this->be($this->user());
         $this->call('GET', route('attachments.download', [1]));
         $this->assertResponseStatus(200);