Fix error when rendering public pages with media attachments (#16763)

* Add tests

* Fix error when rendering public pages with media attachments

* Add tests

* Fix tests

* Please CodeClimate

spec/controllers/media_controller_spec.rb

@@ -6,33 +6,60 @@ describe MediaController do
   render_views
 
   describe '#show' do
-    it 'redirects to the file url when attached to a status' do
-      status = Fabricate(:status)
-      media_attachment = Fabricate(:media_attachment, status: status, shortcode: 'foo')
-      get :show, params: { id: media_attachment.to_param }
-
-      expect(response).to redirect_to(media_attachment.file.url(:original))
-    end
-
-    it 'responds with missing when there is not an attached status' do
-      media_attachment = Fabricate(:media_attachment, status: nil, shortcode: 'foo')
-      get :show, params: { id: media_attachment.to_param }
-
-      expect(response).to have_http_status(404)
-    end
-
     it 'raises when shortcode cant be found' do
       get :show, params: { id: 'missing' }
 
       expect(response).to have_http_status(404)
     end
 
-    it 'raises when not permitted to view' do
-      status = Fabricate(:status, visibility: :direct)
-      media_attachment = Fabricate(:media_attachment, status: status, shortcode: 'foo')
-      get :show, params: { id: media_attachment.to_param }
+    context 'when the media attachment has a shortcode' do
+      it 'redirects to the file url when attached to a status' do
+        status = Fabricate(:status)
+        media_attachment = Fabricate(:media_attachment, status: status, shortcode: 'OI6IgDzG-nYTqvDQ994')
+        get :show, params: { id: media_attachment.to_param }
 
-      expect(response).to have_http_status(404)
+        expect(response).to redirect_to(media_attachment.file.url(:original))
+      end
+
+      it 'responds with missing when there is not an attached status' do
+        media_attachment = Fabricate(:media_attachment, status: nil, shortcode: 'OI6IgDzG-nYTqvDQ994')
+        get :show, params: { id: media_attachment.to_param }
+
+        expect(response).to have_http_status(404)
+      end
+
+      it 'raises when not permitted to view' do
+        status = Fabricate(:status, visibility: :direct)
+        media_attachment = Fabricate(:media_attachment, status: status, shortcode: 'OI6IgDzG-nYTqvDQ994')
+        get :show, params: { id: media_attachment.to_param }
+
+        expect(response).to have_http_status(404)
+      end
+    end
+
+    context 'when the media attachment has no shortcode' do
+      it 'redirects to the file url when attached to a status' do
+        status = Fabricate(:status)
+        media_attachment = Fabricate(:media_attachment, status: status)
+        get :show, params: { id: media_attachment.to_param }
+
+        expect(response).to redirect_to(media_attachment.file.url(:original))
+      end
+
+      it 'responds with missing when there is not an attached status' do
+        media_attachment = Fabricate(:media_attachment, status: nil)
+        get :show, params: { id: media_attachment.to_param }
+
+        expect(response).to have_http_status(404)
+      end
+
+      it 'raises when not permitted to view' do
+        status = Fabricate(:status, visibility: :direct)
+        media_attachment = Fabricate(:media_attachment, status: status)
+        get :show, params: { id: media_attachment.to_param }
+
+        expect(response).to have_http_status(404)
+      end
     end
   end
 end