diff options
Diffstat (limited to 'activerecord/test/cases/associations/cascaded_eager_loading_test.rb')
-rw-r--r-- | activerecord/test/cases/associations/cascaded_eager_loading_test.rb | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/activerecord/test/cases/associations/cascaded_eager_loading_test.rb b/activerecord/test/cases/associations/cascaded_eager_loading_test.rb index ba2104eb26..a9e22c7643 100644 --- a/activerecord/test/cases/associations/cascaded_eager_loading_test.rb +++ b/activerecord/test/cases/associations/cascaded_eager_loading_test.rb @@ -160,6 +160,16 @@ class CascadedEagerLoadingTest < ActiveRecord::TestCase end end + def test_preload_through_missing_records + post = Post.where.not(author_id: Author.select(:id)).preload(author: { comments: :post }).first! + assert_no_queries { assert_nil post.author } + end + + def test_eager_association_loading_with_missing_first_record + posts = Post.where(id: 3).preload(author: { comments: :post }).to_a + assert_equal posts.size, 1 + end + def test_eager_association_loading_with_recursive_cascading_four_levels_has_many_through source = Vertex.all.merge!(includes: { sinks: { sinks: { sinks: :sinks } } }, order: "vertices.id").first assert_equal vertices(:vertex_4), assert_no_queries { source.sinks.first.sinks.first.sinks.first } |