diff options
Diffstat (limited to 'activerecord/test/cases')
-rw-r--r-- | activerecord/test/cases/attribute_methods_test.rb | 10 | ||||
-rw-r--r-- | activerecord/test/cases/attribute_set_test.rb | 11 | ||||
-rw-r--r-- | activerecord/test/cases/attribute_test.rb | 19 |
3 files changed, 40 insertions, 0 deletions
diff --git a/activerecord/test/cases/attribute_methods_test.rb b/activerecord/test/cases/attribute_methods_test.rb index 4036294121..ea2b94cbf4 100644 --- a/activerecord/test/cases/attribute_methods_test.rb +++ b/activerecord/test/cases/attribute_methods_test.rb @@ -937,6 +937,16 @@ class AttributeMethodsTest < ActiveRecord::TestCase assert model.id_came_from_user? end + def test_accessed_fields + model = @target.first + + assert_equal [], model.accessed_fields + + model.title + + assert_equal ["title"], model.accessed_fields + end + private def new_topic_like_ar_class(&block) diff --git a/activerecord/test/cases/attribute_set_test.rb b/activerecord/test/cases/attribute_set_test.rb index ba53612d30..8025c7c4d2 100644 --- a/activerecord/test/cases/attribute_set_test.rb +++ b/activerecord/test/cases/attribute_set_test.rb @@ -186,5 +186,16 @@ module ActiveRecord attributes.freeze assert_equal({ foo: "1" }, attributes.to_hash) end + + test "#accessed_attributes returns only attributes which have been read" do + builder = AttributeSet::Builder.new(foo: Type::Value.new, bar: Type::Value.new) + attributes = builder.build_from_database(foo: "1", bar: "2") + + assert_equal [], attributes.accessed + + attributes.fetch_value(:foo) + + assert_equal [:foo], attributes.accessed + end end end diff --git a/activerecord/test/cases/attribute_test.rb b/activerecord/test/cases/attribute_test.rb index 39a976fcc8..eac73e11e8 100644 --- a/activerecord/test/cases/attribute_test.rb +++ b/activerecord/test/cases/attribute_test.rb @@ -169,5 +169,24 @@ module ActiveRecord second = Attribute.from_user(:foo, 1, Type::Integer.new) assert_not_equal first, second end + + test "an attribute has not been read by default" do + attribute = Attribute.from_database(:foo, 1, Type::Value.new) + assert_not attribute.has_been_read? + end + + test "an attribute has been read when its value is calculated" do + attribute = Attribute.from_database(:foo, 1, Type::Value.new) + attribute.value + assert attribute.has_been_read? + end + + test "an attribute can not be mutated if it has not been read, + and skips expensive calculations" do + type_which_raises_from_all_methods = Object.new + attribute = Attribute.from_database(:foo, "bar", type_which_raises_from_all_methods) + + assert_not attribute.changed_in_place_from?("bar") + end end end |