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_maker_2.0.rb
    path of file: ./repos/ruby-packer/ruby/test/rss
    
    the code of the file until where you have to start completion: # frozen_string_literal: false
require_relative "rss-testcase"

require "rss/maker"

module RSS
  class TestMaker20 < TestCase
    def test_supported?
      assert(RSS::Maker.supported?("2.0"))
      assert(RSS::Maker.supported?("rss2.0"))
      assert(!RSS::Maker.supported?("2.2"))
      assert(!RSS::Maker.supported?("rss2.2"))
    end

    def test_find_class
      assert_equal(RSS::Maker::RSS20, RSS::Maker["2.0"])
      assert_equal(RSS::Maker::RSS20, RSS::Maker["rss2.0"])
    end

    def test_rss
      assert_raise(LocalJumpError) do
        RSS::Maker.make("2.0")
      end

      rss = RSS::Maker.make("2.0") do |maker|
        setup_dummy_channel(maker)
      end
      assert_equal("2.0"
    
    def test_rss
      assert_raise(LocalJumpError) do
        RSS::Maker.make("2.0")
      end

      rss = RSS::Maker.make("2.0") do |maker|
        setup_dummy_channel(maker)
      end
      assert_equal("2.0", rss.rss_version)

      rss = RSS::Maker.make("2.0") do |maker|
        setup_dummy_channel(maker)

        maker.encoding = "EUC-JP"
      end
      assert_equal("2.0", rss.rss_version)
      assert_equal("EUC-JP", rss.encoding)

      rss = RSS::Maker.make("2.0") do |maker|
        setup_dummy_channel(maker)

        maker.standalone = "yes"
      end
      assert_equal("2.0", rss.rss_version)
      assert_equal("yes", rss.standalone)

      rss = RSS::Maker.make("2.0") do |maker|
        setup_dummy_channel(maker)

        maker.encoding = "EUC-JP"
        maker.standalone = "yes"
      end
      assert_equal("2.0", rss.rss_version)
      assert_equal("EUC-JP", rss.encoding)
      assert_equal("yes", rss.standalone)
    end