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-rw-r--r--activerecord/test/cases/nested_attributes_test.rb14
1 files changed, 14 insertions, 0 deletions
diff --git a/activerecord/test/cases/nested_attributes_test.rb b/activerecord/test/cases/nested_attributes_test.rb
index b6e140b912..165b7454b7 100644
--- a/activerecord/test/cases/nested_attributes_test.rb
+++ b/activerecord/test/cases/nested_attributes_test.rb
@@ -131,6 +131,20 @@ class TestNestedAttributesInGeneral < ActiveRecord::TestCase
assert_equal 's1', ship.reload.name
end
+ def test_reuse_already_built_new_record
+ pirate = Pirate.new
+ ship_built_first = pirate.build_ship
+ pirate.ship_attributes = { name: 'Ship 1' }
+ assert_equal ship_built_first.object_id, pirate.ship.object_id
+ end
+
+ def test_do_not_allow_assigning_foreign_key_when_reusing_existing_new_record
+ pirate = Pirate.create!(catchphrase: "Don' botharrr talkin' like one, savvy?")
+ pirate.build_ship
+ pirate.ship_attributes = { name: 'Ship 1', pirate_id: pirate.id + 1 }
+ assert_equal pirate.id, pirate.ship.pirate_id
+ end
+
def test_reject_if_with_a_proc_which_returns_true_always_for_has_many
Man.accepts_nested_attributes_for :interests, :reject_if => proc {|attributes| true }
man = Man.create(name: "John")