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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 GpsLocation.new('39x110') == GpsLocation.new('39x110')
end
def test_gps_inequality
assert GpsLocation.new('39x110') != GpsLocation.new('39x111')
end
def test_allow_nil_gps_is_nil
assert_equal 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_equal nil, customers(:david).gps_location
end
def test_allow_nil_set_address_attributes_to_nil
customers(:zaphod).address = nil
assert_equal nil, customers(:zaphod).attributes[:address_street]
assert_equal nil, customers(:zaphod).attributes[:address_city]
assert_equal 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_equal 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 customers(:zaphod).address.street.nil?
end
def test_nil_assignment_results_in_nil
customers(:david).gps_location = GpsLocation.new('39x111')
assert_not_equal nil, customers(:david).gps_location
customers(:david).gps_location = nil
assert_equal nil, customers(:david).gps_location
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 DeprecatedAggregationsTest < ActiveRecord::TestCase
class Person < ActiveRecord::Base; end
def test_conversion_block_is_deprecated
assert_deprecated 'conversion block has been deprecated' do
Person.composed_of(:balance, :class_name => "Money", :mapping => %w(balance amount)) { |balance| balance.to_money }
end
end
def test_conversion_block_used_when_converter_option_is_nil
assert_deprecated 'conversion block has been deprecated' do
Person.composed_of(:balance, :class_name => "Money", :mapping => %w(balance amount)) { |balance| balance.to_money }
end
assert_raise(NoMethodError) { Person.new.balance = 5 }
end
def test_converter_option_overrides_conversion_block
assert_deprecated 'conversion block has been deprecated' do
Person.composed_of(:balance, :class_name => "Money", :mapping => %w(balance amount), :converter => Proc.new { |balance| Money.new(balance) }) { |balance| balance.to_money }
end
person = Person.new
assert_nothing_raised { person.balance = 5 }
assert_equal 5, person.balance.amount
assert_kind_of Money, person.balance
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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