1 files changed, 6 insertions, 1 deletions
diff --git a/activerecord/test/models/post.rb b/activerecord/test/models/post.rb
index 4b3576fce8..4c8e847354 100644
--- a/activerecord/test/models/post.rb
+++ b/activerecord/test/models/post.rb
@@ -184,14 +184,19 @@ end
 class SpecialPost < Post; end
 
 class StiPost < Post
-  self.abstract_class = true
   has_one :special_comment, class_name: "SpecialComment"
 end
 
+class AbstractStiPost < Post
+  self.abstract_class = true
+end
+
 class SubStiPost < StiPost
   self.table_name = Post.table_name
 end
 
+class SubAbstractStiPost < AbstractStiPost; end
+
 class FirstPost < ActiveRecord::Base
   self.inheritance_column = :disabled
   self.table_name = "posts"