diff --git a/test/unit/thumbnail_test.rb b/test/unit/thumbnail_test.rb
index d5b90b3..86a6c60 100644
--- a/test/unit/thumbnail_test.rb
+++ b/test/unit/thumbnail_test.rb
@@ -2,6 +2,12 @@ require File.dirname(__FILE__) + '/../test_helper'
 
 class ThumbnailTest < Test::Unit::TestCase
 
-  # FIXME add some tests
+  should 'use sensible options' do
+    assert_equal :file_system, Thumbnail.attachment_options[:storage]
+
+    Thumbnail.attachment_options[:content_type].each do |item|
+      assert_match 'image/', item 
+    end
+  end
   
 end
--
libgit2 0.21.2