You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: test-attribute.rb
    path of file: ./repos/ruby-packer/ruby/gems/test-unit-3.3.4/test
    
    the code of the file until where you have to start completion: class TestUnitAttribute < Test::Unit::TestCase
  class TestStack < Test::Unit::TestCase
    class << self
      def suite
 
    
  def test_attributes_with_prepended_module
    omit("Module#prepend is needed") unless Module.respond_to?(:prepend, true)
    test_case = Class.new(TestStack) do
      prepend Module.new
    end
    assert_equal({
                   "category" => :accessor,
                 },
                 test_case.attributes("test_peek"))
  end