Returning anything other than a Hash or nil from a transformer will n…

…ow raise a meaningful Sanitize::Error exception rather than an unintended NameError. Closes #15

HISTORY

@@ -1,6 +1,11 @@
 Sanitize History
 ================================================================================
 
+Version 1.2.1 (git)
+  * Returning anything other than a Hash or nil from a transformer will now
+    raise a meaningful Sanitize::Error exception rather than an unintended
+    NameError.
+
 Version 1.2.0 (2010-01-17)
   * Requires Nokogiri ~> 1.4.1.
   * Added support for transformers, which allow you to filter and alter nodes

lib/sanitize.rb

@@ -224,4 +224,6 @@ def transform_element!(node)
 
     return output
   end
+
+  class Error < StandardError; end
 end

test/spec_sanitize.rb

@@ -360,4 +360,10 @@
 
     Sanitize.clean!(input, :transformers => youtube).should.equal(output)
   end
+
+  should 'raise Sanitize::Error when a transformer returns something silly' do
+    should.raise(Sanitize::Error) do
+      Sanitize.clean!('<b>foo</b>', :transformers => lambda { 'hello' })
+    end
+  end
 end