Test to verify that #2189 (count with has_many :through and a named_scope) is fixed

activerecord/test/cases/associations/has_many_through_associations_test.rb

@@ -529,4 +529,9 @@ def test_select_chosen_fields_only
   def test_get_has_many_through_belongs_to_ids_with_conditions
     assert_equal [categories(:general).id], authors(:mary).categories_like_general_ids
   end
+
+  def test_count_has_many_through_with_named_scope
+    assert_equal 2, authors(:mary).categories.count
+    assert_equal 1, authors(:mary).categories.general.count
+  end
 end

activerecord/test/models/category.rb

@@ -23,6 +23,8 @@ def self.what_are_you
 
   has_many :categorizations
   has_many :authors, :through => :categorizations, :select => 'authors.*, categorizations.post_id'
+
+  scope :general, :conditions => { :name => 'General' }
 end
 
 class SpecialCategory < Category