require 'cases/helper' require 'models/contact' require 'models/helicopter' class ConversionTest < ActiveModel::TestCase test "to_model default implementation returns self" do contact = Contact.new assert_equal contact, contact.to_model end test "to_key default implementation returns nil for new records" do assert_nil Contact.new.to_key end test "to_key default implementation returns the id in an array for persisted records" do assert_equal [1], Contact.new(id: 1).to_key end test "to_param default implementation returns nil for new records" do assert_nil Contact.new.to_param end test "to_param default implementation returns a string of ids for persisted records" do assert_equal "1", Contact.new(id: 1).to_param end test "to_param returns the string joined by '-'" do assert_equal "abc-xyz", Contact.new(id: ["abc", "xyz"]).to_param end test "to_param returns nil if to_key is nil" do klass = Class.new(Contact) do def persisted? true end end assert_nil klass.new.to_param end test "to_partial_path default implementation returns a string giving a relative path" do assert_equal "contacts/contact", Contact.new.to_partial_path assert_equal "helicopters/helicopter", Helicopter.new.to_partial_path, "ActiveModel::Conversion#to_partial_path caching should be class-specific" end test "to_partial_path handles namespaced models" do assert_equal "helicopter/comanches/comanche", Helicopter::Comanche.new.to_partial_path end end