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require "cases/helper"
require 'models/topic'
require 'models/customer'
require 'models/company'
require 'models/company_in_module'
require 'models/subscriber'
class ReflectionTest < ActiveRecord::TestCase
fixtures :topics, :customers, :companies, :subscribers
def setup
@first = Topic.find(1)
end
def test_column_null_not_null
subscriber = Subscriber.find(:first)
assert subscriber.column_for_attribute("name").null
assert !subscriber.column_for_attribute("nick").null
end
def test_read_attribute_names
assert_equal(
%w( id title author_name author_email_address bonus_time written_on last_read content approved replies_count parent_id type ).sort,
@first.attribute_names
)
end
def test_columns
assert_equal 12, Topic.columns.length
end
def test_columns_are_returned_in_the_order_they_were_declared
column_names = Topic.columns.map { |column| column.name }
assert_equal %w(id title author_name author_email_address written_on bonus_time last_read content approved replies_count parent_id type), column_names
end
def test_content_columns
content_columns = Topic.content_columns
content_column_names = content_columns.map {|column| column.name}
assert_equal 8, content_columns.length
assert_equal %w(title author_name author_email_address written_on bonus_time last_read content approved).sort, content_column_names.sort
end
def test_column_string_type_and_limit
assert_equal :string, @first.column_for_attribute("title").type
assert_equal 255, @first.column_for_attribute("title").limit
end
def test_column_null_not_null
subscriber = Subscriber.find(:first)
assert subscriber.column_for_attribute("name").null
assert !subscriber.column_for_attribute("nick").null
end
def test_human_name_for_column
assert_equal "Author name", @first.column_for_attribute("author_name").human_name
end
def test_integer_columns
assert_equal :integer, @first.column_for_attribute("id").type
end
def test_reflection_klass_for_nested_class_name
reflection = ActiveRecord::Reflection::MacroReflection.new(nil, nil, { :class_name => 'MyApplication::Business::Company' }, nil)
assert_nothing_raised do
assert_equal MyApplication::Business::Company, reflection.klass
end
end
def test_aggregation_reflection
reflection_for_address = ActiveRecord::Reflection::AggregateReflection.new(
:composed_of, :address, { :mapping => [ %w(address_street street), %w(address_city city), %w(address_country country) ] }, Customer
)
reflection_for_balance = ActiveRecord::Reflection::AggregateReflection.new(
:composed_of, :balance, { :class_name => "Money", :mapping => %w(balance amount) }, Customer
)
reflection_for_gps_location = ActiveRecord::Reflection::AggregateReflection.new(
:composed_of, :gps_location, { }, Customer
)
assert Customer.reflect_on_all_aggregations.include?(reflection_for_gps_location)
assert Customer.reflect_on_all_aggregations.include?(reflection_for_balance)
assert Customer.reflect_on_all_aggregations.include?(reflection_for_address)
assert_equal reflection_for_address, Customer.reflect_on_aggregation(:address)
assert_equal Address, Customer.reflect_on_aggregation(:address).klass
assert_equal Money, Customer.reflect_on_aggregation(:balance).klass
end
def test_has_many_reflection
reflection_for_clients = ActiveRecord::Reflection::AssociationReflection.new(:has_many, :clients, { :order => "id", :dependent => :destroy }, Firm)
assert_equal reflection_for_clients, Firm.reflect_on_association(:clients)
assert_equal Client, Firm.reflect_on_association(:clients).klass
assert_equal 'companies', Firm.reflect_on_association(:clients).table_name
assert_equal Client, Firm.reflect_on_association(:clients_of_firm).klass
assert_equal 'companies', Firm.reflect_on_association(:clients_of_firm).table_name
end
def test_has_one_reflection
reflection_for_account = ActiveRecord::Reflection::AssociationReflection.new(:has_one, :account, { :foreign_key => "firm_id", :dependent => :destroy }, Firm)
assert_equal reflection_for_account, Firm.reflect_on_association(:account)
assert_equal Account, Firm.reflect_on_association(:account).klass
assert_equal 'accounts', Firm.reflect_on_association(:account).table_name
end
def test_belongs_to_inferred_foreign_key_from_assoc_name
Company.belongs_to :foo
assert_equal "foo_id", Company.reflect_on_association(:foo).primary_key_name
Company.belongs_to :bar, :class_name => "Xyzzy"
assert_equal "bar_id", Company.reflect_on_association(:bar).primary_key_name
Company.belongs_to :baz, :class_name => "Xyzzy", :foreign_key => "xyzzy_id"
assert_equal "xyzzy_id", Company.reflect_on_association(:baz).primary_key_name
end
def test_association_reflection_in_modules
assert_reflection MyApplication::Business::Firm,
:clients_of_firm,
:klass => MyApplication::Business::Client,
:class_name => 'Client',
:table_name => 'companies'
assert_reflection MyApplication::Billing::Account,
:firm,
:klass => MyApplication::Business::Firm,
:class_name => 'MyApplication::Business::Firm',
:table_name => 'companies'
assert_reflection MyApplication::Billing::Account,
:qualified_billing_firm,
:klass => MyApplication::Billing::Firm,
:class_name => 'MyApplication::Billing::Firm',
:table_name => 'companies'
assert_reflection MyApplication::Billing::Account,
:unqualified_billing_firm,
:klass => MyApplication::Billing::Firm,
:class_name => 'Firm',
:table_name => 'companies'
assert_reflection MyApplication::Billing::Account,
:nested_qualified_billing_firm,
:klass => MyApplication::Billing::Nested::Firm,
:class_name => 'MyApplication::Billing::Nested::Firm',
:table_name => 'companies'
assert_reflection MyApplication::Billing::Account,
:nested_unqualified_billing_firm,
:klass => MyApplication::Billing::Nested::Firm,
:class_name => 'Nested::Firm',
:table_name => 'companies'
end
def test_reflection_of_all_associations
# FIXME these assertions bust a lot
assert_equal 24, Firm.reflect_on_all_associations.size
assert_equal 18, Firm.reflect_on_all_associations(:has_many).size
assert_equal 6, Firm.reflect_on_all_associations(:has_one).size
assert_equal 0, Firm.reflect_on_all_associations(:belongs_to).size
end
def test_reflection_should_not_raise_error_when_compared_to_other_object
assert_nothing_raised { Firm.reflections[:clients] == Object.new }
end
private
def assert_reflection(klass, association, options)
assert reflection = klass.reflect_on_association(association)
options.each do |method, value|
assert_equal(value, reflection.send(method))
end
end
end
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