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Diffstat (limited to 'activemodel/test/cases/attributes_dirty_test.rb')
| -rw-r--r-- | activemodel/test/cases/attributes_dirty_test.rb | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/activemodel/test/cases/attributes_dirty_test.rb b/activemodel/test/cases/attributes_dirty_test.rb new file mode 100644 index 0000000000..f9693a23cd --- /dev/null +++ b/activemodel/test/cases/attributes_dirty_test.rb @@ -0,0 +1,205 @@ +# frozen_string_literal: true + +require "cases/helper" + +class AttributesDirtyTest < ActiveModel::TestCase + class DirtyModel + include ActiveModel::Model + include ActiveModel::Attributes + include ActiveModel::Dirty + attribute :name, :string + attribute :color, :string + attribute :size, :integer + + def save + changes_applied + end + + def reload + clear_changes_information + end + end + + setup do + @model = DirtyModel.new + end + + test "setting attribute will result in change" do + assert_not_predicate @model, :changed? + assert_not_predicate @model, :name_changed? + @model.name = "Ringo" + assert_predicate @model, :changed? + assert_predicate @model, :name_changed? + end + + test "list of changed attribute keys" do + assert_equal [], @model.changed + @model.name = "Paul" + assert_equal ["name"], @model.changed + end + + test "changes to attribute values" do + assert_not @model.changes["name"] + @model.name = "John" + assert_equal [nil, "John"], @model.changes["name"] + end + + test "checking if an attribute has changed to a particular value" do + @model.name = "Ringo" + assert @model.name_changed?(from: nil, to: "Ringo") + assert_not @model.name_changed?(from: "Pete", to: "Ringo") + assert @model.name_changed?(to: "Ringo") + assert_not @model.name_changed?(to: "Pete") + assert @model.name_changed?(from: nil) + assert_not @model.name_changed?(from: "Pete") + end + + test "changes accessible through both strings and symbols" do + @model.name = "David" + assert_not_nil @model.changes[:name] + assert_not_nil @model.changes["name"] + end + + test "be consistent with symbols arguments after the changes are applied" do + @model.name = "David" + assert @model.attribute_changed?(:name) + @model.save + @model.name = "Rafael" + assert @model.attribute_changed?(:name) + end + + test "attribute mutation" do + @model.name = "Yam" + @model.save + assert_not_predicate @model, :name_changed? + @model.name.replace("Hadad") + assert_predicate @model, :name_changed? + end + + test "resetting attribute" do + @model.name = "Bob" + @model.restore_name! + assert_nil @model.name + assert_not_predicate @model, :name_changed? + end + + test "setting color to same value should not result in change being recorded" do + @model.color = "red" + assert_predicate @model, :color_changed? + @model.save + assert_not_predicate @model, :color_changed? + assert_not_predicate @model, :changed? + @model.color = "red" + assert_not_predicate @model, :color_changed? + assert_not_predicate @model, :changed? + end + + test "saving should reset model's changed status" do + @model.name = "Alf" + assert_predicate @model, :changed? + @model.save + assert_not_predicate @model, :changed? + assert_not_predicate @model, :name_changed? + end + + test "saving should preserve previous changes" do + @model.name = "Jericho Cane" + @model.save + assert_equal [nil, "Jericho Cane"], @model.previous_changes["name"] + end + + test "setting new attributes should not affect previous changes" do + @model.name = "Jericho Cane" + @model.save + @model.name = "DudeFella ManGuy" + assert_equal [nil, "Jericho Cane"], @model.name_previous_change + end + + test "saving should preserve model's previous changed status" do + @model.name = "Jericho Cane" + @model.save + assert_predicate @model, :name_previously_changed? + end + + test "previous value is preserved when changed after save" do + assert_equal({}, @model.changed_attributes) + @model.name = "Paul" + assert_equal({ "name" => nil }, @model.changed_attributes) + + @model.save + + @model.name = "John" + assert_equal({ "name" => "Paul" }, @model.changed_attributes) + end + + test "changing the same attribute multiple times retains the correct original value" do + @model.name = "Otto" + @model.save + @model.name = "DudeFella ManGuy" + @model.name = "Mr. Manfredgensonton" + assert_equal ["Otto", "Mr. Manfredgensonton"], @model.name_change + assert_equal @model.name_was, "Otto" + end + + test "using attribute_will_change! with a symbol" do + @model.size = 1 + assert_predicate @model, :size_changed? + end + + test "reload should reset all changes" do + @model.name = "Dmitry" + @model.name_changed? + @model.save + @model.name = "Bob" + + assert_equal [nil, "Dmitry"], @model.previous_changes["name"] + assert_equal "Dmitry", @model.changed_attributes["name"] + + @model.reload + + assert_equal ActiveSupport::HashWithIndifferentAccess.new, @model.previous_changes + assert_equal ActiveSupport::HashWithIndifferentAccess.new, @model.changed_attributes + end + + test "restore_attributes should restore all previous data" do + @model.name = "Dmitry" + @model.color = "Red" + @model.save + @model.name = "Bob" + @model.color = "White" + + @model.restore_attributes + + assert_not_predicate @model, :changed? + assert_equal "Dmitry", @model.name + assert_equal "Red", @model.color + end + + test "restore_attributes can restore only some attributes" do + @model.name = "Dmitry" + @model.color = "Red" + @model.save + @model.name = "Bob" + @model.color = "White" + + @model.restore_attributes(["name"]) + + assert_predicate @model, :changed? + assert_equal "Dmitry", @model.name + assert_equal "White", @model.color + end + + test "changing the attribute reports a change only when the cast value changes" do + @model.size = "2.3" + @model.save + @model.size = "2.1" + + assert_equal false, @model.changed? + + @model.size = "5.1" + + assert_equal true, @model.changed? + assert_equal true, @model.size_changed? + assert_equal({ "size" => [2, 5] }, @model.changes) + end +end |