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require "cases/helper"
require 'models/customer'
require 'active_support/core_ext/exception'
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(ActiveSupport::FrozenObjectError) { 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
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
end
class OverridingAggregationsTest < ActiveRecord::TestCase
class Name; end
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
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