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-rw-r--r--activerecord/test/cases/associations/has_many_associations_test.rb5
1 files changed, 5 insertions, 0 deletions
diff --git a/activerecord/test/cases/associations/has_many_associations_test.rb b/activerecord/test/cases/associations/has_many_associations_test.rb
index a936017ae3..d7515a4c18 100644
--- a/activerecord/test/cases/associations/has_many_associations_test.rb
+++ b/activerecord/test/cases/associations/has_many_associations_test.rb
@@ -2544,6 +2544,11 @@ class HasManyAssociationsTest < ActiveRecord::TestCase
assert_equal [bulb.id], car.bulb_ids
assert_no_queries { car.bulb_ids }
+
+ bulb2 = car.bulbs.create!
+
+ assert_equal [bulb.id, bulb2.id], car.bulb_ids
+ assert_no_queries { car.bulb_ids }
end
def test_loading_association_in_validate_callback_doesnt_affect_persistence