fixed tests

app/models/artist.rb

@@ -67,11 +67,11 @@ class Artist < ActiveRecord::Base
     end
     
     def other_names_array
-      other_names.split(/ /)
+      other_names.try(:split, / /)
     end
     
     def other_names_comma
-      other_names_array.join(", ")
+      other_names_array.try(:join, ", ")
     end
     
     def other_names_comma=(string)

app/models/tag.rb

@@ -339,7 +339,7 @@ class Tag < ActiveRecord::Base
   module RelationMethods
     def update_related
       return unless should_update_related?
-      CurrentUser.scoped(User.find(1), "127.0.0.1") do
+      CurrentUser.scoped(User.first, "127.0.0.1") do
         self.related_tags = RelatedTagCalculator.calculate_from_sample_to_array(name).join(" ")
       end
       self.related_tags_updated_at = Time.now