require "cases/helper" require "models/customer" class AggregationsTest < ActiveRecord::TestCase fixtures :customers def test_find_single_value_object assert_equal 50, customers(:david).balance.amount assert_kind_of Money, customers(:david).balance assert_equal 300, customers(:david).balance.exchange_to("DKK").amount end def test_find_multiple_value_object assert_equal customers(:david).address_street, customers(:david).address.street assert( customers(:david).address.close_to?(Address.new("Different Street", customers(:david).address_city, customers(:david).address_country)) ) end def test_change_single_value_object customers(:david).balance = Money.new(100) customers(:david).save assert_equal 100, customers(:david).reload.balance.amount end def test_immutable_value_objects customers(:david).balance = Money.new(100) assert_raise(RuntimeError) { customers(:david).balance.instance_eval { @amount = 20 } } end def test_inferred_mapping assert_equal "35.544623640962634", customers(:david).gps_location.latitude assert_equal "-105.9309951055148", customers(:david).gps_location.longitude customers(:david).gps_location = GpsLocation.new("39x-110") assert_equal "39", customers(:david).gps_location.latitude assert_equal "-110", customers(:david).gps_location.longitude customers(:david).save customers(:david).reload assert_equal "39", customers(:david).gps_location.latitude assert_equal "-110", customers(:david).gps_location.longitude end def test_reloaded_instance_refreshes_aggregations assert_equal "35.544623640962634", customers(:david).gps_location.latitude assert_equal "-105.9309951055148", customers(:david).gps_location.longitude Customer.update_all("gps_location = '24x113'") customers(:david).reload assert_equal "24x113", customers(:david)["gps_location"] assert_equal GpsLocation.new("24x113"), customers(:david).gps_location end def test_gps_equality assert_equal GpsLocation.new("39x110"), GpsLocation.new("39x110") end def test_gps_inequality assert_not_equal GpsLocation.new("39x110"), GpsLocation.new("39x111") end def test_allow_nil_gps_is_nil assert_nil customers(:zaphod).gps_location end def test_allow_nil_gps_set_to_nil customers(:david).gps_location = nil customers(:david).save customers(:david).reload assert_nil customers(:david).gps_location end def test_allow_nil_set_address_attributes_to_nil customers(:zaphod).address = nil assert_nil customers(:zaphod).attributes[:address_street] assert_nil customers(:zaphod).attributes[:address_city] assert_nil customers(:zaphod).attributes[:address_country] end def test_allow_nil_address_set_to_nil customers(:zaphod).address = nil customers(:zaphod).save customers(:zaphod).reload assert_nil customers(:zaphod).address end def test_nil_raises_error_when_allow_nil_is_false assert_raise(NoMethodError) { customers(:david).balance = nil } end def test_allow_nil_address_loaded_when_only_some_attributes_are_nil customers(:zaphod).address_street = nil customers(:zaphod).save customers(:zaphod).reload assert_kind_of Address, customers(:zaphod).address assert_nil customers(:zaphod).address.street end def test_nil_assignment_results_in_nil customers(:david).gps_location = GpsLocation.new("39x111") assert_not_nil customers(:david).gps_location customers(:david).gps_location = nil assert_nil customers(:david).gps_location end def test_nil_return_from_converter_is_respected_when_allow_nil_is_true customers(:david).non_blank_gps_location = "" customers(:david).save customers(:david).reload assert_nil customers(:david).non_blank_gps_location ensure Customer.gps_conversion_was_run = nil end def test_nil_return_from_converter_results_in_failure_when_allow_nil_is_false assert_raises(NoMethodError) do customers(:barney).gps_location = "" end end def test_do_not_run_the_converter_when_nil_was_set customers(:david).non_blank_gps_location = nil assert_nil Customer.gps_conversion_was_run end def test_custom_constructor assert_equal "Barney GUMBLE", customers(:barney).fullname.to_s assert_kind_of Fullname, customers(:barney).fullname end def test_custom_converter customers(:barney).fullname = "Barnoit Gumbleau" assert_equal "Barnoit GUMBLEAU", customers(:barney).fullname.to_s assert_kind_of Fullname, customers(:barney).fullname end def test_assigning_hash_to_custom_converter customers(:barney).fullname = { first: "Barney", last: "Stinson" } assert_equal "Barney STINSON", customers(:barney).name end def test_assigning_hash_without_custom_converter customers(:barney).fullname_no_converter = { first: "Barney", last: "Stinson" } assert_equal({ first: "Barney", last: "Stinson" }.to_s, customers(:barney).name) end end class OverridingAggregationsTest < ActiveRecord::TestCase class DifferentName; end class Person < ActiveRecord::Base composed_of :composed_of, mapping: %w(person_first_name first_name) end class DifferentPerson < Person composed_of :composed_of, class_name: "DifferentName", mapping: %w(different_person_first_name first_name) end def test_composed_of_aggregation_redefinition_reflections_should_differ_and_not_inherited assert_not_equal Person.reflect_on_aggregation(:composed_of), DifferentPerson.reflect_on_aggregation(:composed_of) end end