diff --git a/test/functional/attachments_controller_test.rb b/test/functional/attachments_controller_test.rb
index 566009a..397be85 100644
--- a/test/functional/attachments_controller_test.rb
+++ b/test/functional/attachments_controller_test.rb
@@ -189,6 +189,15 @@ class AttachmentsControllerTest < ActionController::TestCase
     set_tmp_attachments_directory
   end
 
+  def test_show_image
+    @request.session[:user_id] = 2
+    get :show, :id => 16
+    assert_response :success
+    assert_template 'image'
+    assert_equal 'text/html', @response.content_type
+    assert_select 'img.filecontent', :src => attachments(:attachments_010).filename
+  end
+
   def test_show_other
     get :show, :id => 6
     assert_response :success