diff options
Diffstat (limited to 'activerecord/test/cases/associations/eager_test.rb')
| -rw-r--r-- | activerecord/test/cases/associations/eager_test.rb | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/activerecord/test/cases/associations/eager_test.rb b/activerecord/test/cases/associations/eager_test.rb index 0c09713971..874d53c51f 100644 --- a/activerecord/test/cases/associations/eager_test.rb +++ b/activerecord/test/cases/associations/eager_test.rb @@ -1402,4 +1402,10 @@ class EagerAssociationTest < ActiveRecord::TestCase post = Post.eager_load(:tags).where('tags.name = ?', 'General').first assert_equal posts(:welcome), post end + + # CollectionProxy#reader is expensive, so the preloader avoids calling it. + test "preloading has_many_through association avoids calling association.reader" do + ActiveRecord::Associations::HasManyAssociation.any_instance.expects(:reader).never + Author.preload(:readonly_comments).first! + end end |