describe Spree::RoleSerializer do let(:role) { create :role } subject { ActiveModel::Serializer::Adapter::JsonApi.new(described_class.new role) } its(:to_json) do is_expected.to be_json_eql <<-JSON { "data" : { "attributes" : { "name" : "#{role.name}" }, "type" : "spree_roles" } } JSON end end