1 files changed, 9 insertions, 0 deletions
diff --git a/activerecord/test/models/developer.rb b/activerecord/test/models/developer.rb
index 4dc9fff9fd..a730d86586 100644
--- a/activerecord/test/models/developer.rb
+++ b/activerecord/test/models/developer.rb
@@ -63,6 +63,15 @@ class Developer < ActiveRecord::Base
       self.all
     end
   end
+
+  after_find :track_instance_count
+  cattr_accessor :instance_count
+
+  def track_instance_count
+    self.class.instance_count ||= 0
+    self.class.instance_count += 1
+  end
+  private :track_instance_count
 end
 
 class AuditLog < ActiveRecord::Base