add self referential has_many :through example [Rick]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4006 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 12 insertions, 1 deletions

diff --git a/activerecord/test/associations_join_model_test.rb b/activerecord/test/associations_join_model_test.rb
index ee99d77931..bbe88cfbd5 100644
--- a/activerecord/test/associations_join_model_test.rb
+++ b/activerecord/test/associations_join_model_test.rb
@@ -9,7 +9,7 @@ require 'fixtures/categorization'
 
 class AssociationsJoinModelTest < Test::Unit::TestCase
   self.use_transactional_fixtures = false
-  fixtures :posts, :authors, :categories, :categorizations, :comments, :tags, :taggings
+  fixtures :posts, :authors, :categories, :categorizations, :comments, :tags, :taggings, :author_favorites
 
   def test_has_many
     assert_equal categories(:general), authors(:david).categories.first
@@ -294,6 +294,17 @@ class AssociationsJoinModelTest < Test::Unit::TestCase
     end
   end
 
+  def test_self_referential_has_many_through
+    assert_equal [authors(:mary)], authors(:david).favorite_authors
+    assert_equal [],               authors(:mary).favorite_authors
+  end
+
+  def test_add_to_self_referential_has_many_through
+    new_author = Author.create(:name => "Bob")
+    authors(:david).author_favorites.create :favorite_author => new_author
+    assert_equal [new_author, authors(:mary)], authors(:david).reload.favorite_authors
+  end
+
   private
     # create dynamic Post models to allow different dependency options
     def find_post_with_dependency(post_id, association, association_name, dependency)