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-rw-r--r--activerecord/test/cases/associations/cascaded_eager_loading_test.rb5
1 files changed, 5 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 4cbc65b6d8..a9e22c7643 100644
--- a/activerecord/test/cases/associations/cascaded_eager_loading_test.rb
+++ b/activerecord/test/cases/associations/cascaded_eager_loading_test.rb
@@ -165,6 +165,11 @@ class CascadedEagerLoadingTest < ActiveRecord::TestCase
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 }