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-rw-r--r--activerecord/test/cases/associations/has_many_associations_test.rb16
1 files changed, 16 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 5921193374..4b9b55f822 100644
--- a/activerecord/test/cases/associations/has_many_associations_test.rb
+++ b/activerecord/test/cases/associations/has_many_associations_test.rb
@@ -1815,6 +1815,22 @@ class HasManyAssociationsTest < ActiveRecord::TestCase
assert_equal num_accounts, Account.count
end
+ def test_depends_and_nullify_on_polymorphic_assoc
+ author = PersonWithPolymorphicDependentNullifyComments.create!(first_name: "Laertis")
+ comment = posts(:welcome).comments.first
+ comment.author = author
+ comment.save!
+
+ assert_equal comment.author_id, author.id
+ assert_equal comment.author_type, author.class.name
+
+ author.destroy
+ comment.reload
+
+ assert_nil comment.author_id
+ assert_nil comment.author_type
+ end
+
def test_restrict_with_exception
firm = RestrictedWithExceptionFirm.create!(name: "restrict")
firm.companies.create(name: "child")