diff options
Diffstat (limited to 'activerecord/test')
| -rw-r--r-- | activerecord/test/cases/serialized_attribute_test.rb | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/activerecord/test/cases/serialized_attribute_test.rb b/activerecord/test/cases/serialized_attribute_test.rb index 7c92453ee3..a31c3c828c 100644 --- a/activerecord/test/cases/serialized_attribute_test.rb +++ b/activerecord/test/cases/serialized_attribute_test.rb @@ -274,4 +274,17 @@ class SerializedAttributeTest < ActiveRecord::TestCase assert_equal({}, topic.content) end + + def test_values_cast_from_nil_are_persisted_as_nil + # This is required to fulfil the following contract, which must be universally + # true in Active Record: + # + # model.attribute = value + # assert_equal model.attribute, model.tap(&:save).reload.attribute + Topic.serialize(:content, Hash) + topic = Topic.create!(content: {}) + topic2 = Topic.create!(content: nil) + + assert_equal [topic, topic2], Topic.where(content: nil) + end end |