Prefer models in helper.

test/helper.rb

@@ -7,7 +7,6 @@
 require 'factory_girl'
 require 'lib/test_case'
 require 'grouped_scope'
-require 'models'
 
 class GroupedScope::TestCase
 
@@ -51,3 +50,29 @@ def setup_database(options)
 
 end
 
+class Employee < ActiveRecord::Base
+  has_many :reports
+  grouped_scope :reports
+end
+
+class Report < ActiveRecord::Base
+  belongs_to :employee
+end
+
+class LegacyEmployee < ActiveRecord::Base
+  set_primary_key :email
+  has_many :reports, :class_name => 'LegacyReport', :foreign_key => 'email'
+  grouped_scope :reports
+end
+
+class LegacyReport < ActiveRecord::Base
+  belongs_to :employee, :class_name => 'LegacyEmployee'
+end
+
+class FooBar < ActiveRecord::Base
+  has_many :reports
+  grouped_scope :reports
+end
+
+
+