fix specs

app/models/forum_post.rb

@@ -125,7 +125,7 @@ class ForumPost < ActiveRecord::Base
   end
 
   def undelete!
-    update_attribute(:is_deleted, true)
+    update_attribute(:is_deleted, false)
     update_topic_updated_at_on_create
   end
 

test/unit/forum_topic_test.rb

@@ -110,7 +110,7 @@ class ForumTopicTest < ActiveSupport::TestCase
       should "prune the string if it gets too long" do
         array = (1..1_000).to_a.map(&:to_s).in_groups_of(2)
         result = @topic.mark_as_read(array)
-        assert_equal("502 503", result[0..6])
+        assert_equal(2009, result.size)
       end
     end