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-rw-r--r--activerecord/test/cases/associations/eager_test.rb12
-rw-r--r--activerecord/test/models/author.rb8
2 files changed, 20 insertions, 0 deletions
diff --git a/activerecord/test/cases/associations/eager_test.rb b/activerecord/test/cases/associations/eager_test.rb
index 3ee84fb66c..7f2a2229ee 100644
--- a/activerecord/test/cases/associations/eager_test.rb
+++ b/activerecord/test/cases/associations/eager_test.rb
@@ -1392,6 +1392,18 @@ class EagerAssociationTest < ActiveRecord::TestCase
assert_equal('10 was not recognized for preload', exception.message)
end
+ test "associations with extensions are not instance dependent" do
+ assert_nothing_raised do
+ Author.includes(:posts_with_extension).to_a
+ end
+ end
+
+ test "including associations with extensions and an instance dependent scope is not supported" do
+ e = assert_raises(ArgumentError) do
+ Author.includes(:posts_with_extension_and_instance).to_a
+ end
+ assert_match(/Preloading instance dependent scopes is not supported/, e.message)
+ end
test "preloading readonly association" do
# has-one
diff --git a/activerecord/test/models/author.rb b/activerecord/test/models/author.rb
index f25e31b13d..38b983eda0 100644
--- a/activerecord/test/models/author.rb
+++ b/activerecord/test/models/author.rb
@@ -144,6 +144,14 @@ class Author < ActiveRecord::Base
has_many :posts_with_signature, ->(record) { where("posts.title LIKE ?", "%by #{record.name.downcase}%") }, class_name: "Post"
+ has_many :posts_with_extension, -> { order(:title) }, class_name: "Post" do
+ def extension_method; end
+ end
+
+ has_many :posts_with_extension_and_instance, ->(record) { order(:title) }, class_name: "Post" do
+ def extension_method; end
+ end
+
attr_accessor :post_log
after_initialize :set_post_log