Skip thumbnail tests if ImageMagick convert command is not available (#33226).

Patch by Pavel Rosický.


git-svn-id: http://svn.redmine.org/redmine/trunk@19640 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/unit/attachment_test.rb

@@ -444,6 +444,7 @@ class AttachmentTest < ActiveSupport::TestCase
   end
 
   def test_thumbnailable_should_be_true_for_images
+    skip unless convert_installed?
     assert_equal true, Attachment.new(:filename => 'test.jpg').thumbnailable?
   end