From 7f6872e85bdc2364ed0f90fc9795c59c1deef103 Mon Sep 17 00:00:00 2001
From: Chris Geihsler <chris@geihsler.net>
Date: Sat, 12 Jan 2013 10:22:17 -0500
Subject: Added test case to prevent regression of chained, preloaded scopes.
 (#7490)

---
 activerecord/test/cases/relations_test.rb | 7 +++++++
 activerecord/test/models/post.rb          | 3 +++
 2 files changed, 10 insertions(+)

(limited to 'activerecord/test')

diff --git a/activerecord/test/cases/relations_test.rb b/activerecord/test/cases/relations_test.rb
index 3a499a2025..64f1c9f6cc 100644
--- a/activerecord/test/cases/relations_test.rb
+++ b/activerecord/test/cases/relations_test.rb
@@ -404,6 +404,13 @@ class RelationTest < ActiveRecord::TestCase
     end
   end
 
+  def test_preload_applies_to_all_chained_preloaded_scopes
+    assert_queries(3) do
+      post = Post.with_comments.with_tags.first
+      assert post
+    end
+  end
+
   def test_find_with_included_associations
     assert_queries(2) do
       posts = Post.includes(:comments).order('posts.id')
diff --git a/activerecord/test/models/post.rb b/activerecord/test/models/post.rb
index c995f59a15..11ce345f7c 100644
--- a/activerecord/test/models/post.rb
+++ b/activerecord/test/models/post.rb
@@ -29,6 +29,9 @@ class Post < ActiveRecord::Base
   scope :with_very_special_comments, -> { joins(:comments).where(:comments => {:type => 'VerySpecialComment'}) }
   scope :with_post, ->(post_id) { joins(:comments).where(:comments => { :post_id => post_id }) }
 
+  scope :with_comments, -> { preload(:comments) }
+  scope :with_tags, -> { preload(:taggings) }
+
   has_many   :comments do
     def find_most_recent
       order("id DESC").first
-- 
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