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: array_test.rb
    path of file: ./repos/universalid/test/universalid/message_pack_types/composites
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

class UniversalID::Packer::ArrayTest < Minitest::Test
  def test_pack
    
  def test_build_parse_decode
    expected = scalars.values
    uri = URI::UID.build(expected).to_s
    uid = URI::UID.parse(uri)
    actual = uid.decode

    assert_equal expected, actual
  end