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Diffstat (limited to 'activerecord/test/cases/attributes_test.rb')
-rw-r--r-- | activerecord/test/cases/attributes_test.rb | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/activerecord/test/cases/attributes_test.rb b/activerecord/test/cases/attributes_test.rb index 7bcaa53aa2..604411da97 100644 --- a/activerecord/test/cases/attributes_test.rb +++ b/activerecord/test/cases/attributes_test.rb @@ -205,5 +205,49 @@ module ActiveRecord assert_equal(:bar, child.new(foo: :bar).foo) end + + test "attributes not backed by database columns are not dirty when unchanged" do + refute OverloadedType.new.non_existent_decimal_changed? + end + + test "attributes not backed by database columns are always initialized" do + OverloadedType.create! + model = OverloadedType.first + + assert_nil model.non_existent_decimal + model.non_existent_decimal = "123" + assert_equal 123, model.non_existent_decimal + end + + test "attributes not backed by database columns return the default on models loaded from database" do + child = Class.new(OverloadedType) do + attribute :non_existent_decimal, :decimal, default: 123 + end + child.create! + model = child.first + + assert_equal 123, model.non_existent_decimal + end + + test "attributes not backed by database columns properly interact with mutation and dirty" do + child = Class.new(ActiveRecord::Base) do + self.table_name = "topics" + attribute :foo, :string, default: "lol" + end + child.create! + model = child.first + + assert_equal "lol", model.foo + + model.foo << "asdf" + assert_equal "lolasdf", model.foo + assert model.foo_changed? + + model.reload + assert_equal "lol", model.foo + + model.foo = "lol" + refute model.changed? + end end end |