fix tests

app/controllers/post_versions_controller.rb

@@ -1,5 +1,6 @@
 class PostVersionsController < ApplicationController
   respond_to :html, :xml, :json
+  rescue_from ActiveRecord::StatementInvalid, :with => :rescue_exception
 
   def index
     @post_versions = PostVersion.search(params[:search]).order("updated_at desc").paginate(params[:page], :search_count => params[:search])

test/unit/tag_subscription_test.rb

@@ -23,7 +23,7 @@ class TagSubscriptionTest < ActiveSupport::TestCase
       should "fail" do
         sub = FactoryGirl.build(:tag_subscription, :tag_query => "aaa bbb", :creator => @user, :name => "zzz")
         sub.save
-        assert_equal(["Creator can subscribe up to 0 tags"], sub.errors.full_messages)
+        assert_equal(["You can create up to 0 tag subscriptions"], sub.errors.full_messages)
       end
     end