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: changeset_comments_controller_test.rb
    path of file: ./repos/openstreetmap-website/test/controllers
    
    the code of the file until where you have to start completion: require "test_helper"

class ChangesetCommentsControllerTest < ActionDispatch::IntegrationTest
  ##
  # test all routes which lead to this controller
  def test_routes
    assert_routing(
      { :path => "/changeset/1/comments/feed", :method => :get },
      { :controller => "changeset_comments", :action => "index", :id => "1", :format => "rss" }
    )
    assert_routing(
      { :path => "/history/comments/feed", :method => :get },
      { :controller => "changeset_comments", :act
    
  def test_feed
    changeset = create(:changeset, :closed)
    create_list(:changeset_comment, 3, :changeset => changeset)

    get changesets_comments_feed_path(:format => "rss")
    assert_response :success
    assert_equal "application/rss+xml", @response.media_type
    assert_select "rss", :count => 1 do
      assert_select "channel", :count => 1 do
        assert_select "item", :count => 3
      end
    end

    get changesets_comments_feed_path(:format => "rss", :limit => 2)
    assert_response :success
    assert_equal "application/rss+xml", @response.media_type
    assert_select "rss", :count => 1 do
      assert_select "channel", :count => 1 do
        assert_select "item", :count => 2
      end
    end

    get changeset_comments_feed_path(:id => changeset.id, :format => "rss")
    assert_response :success
    assert_equal "application/rss+xml", @response.media_type
    assert_select "rss", :count => 1 do
      assert_select "channel", :count => 1 do
        assert_select "item", :count => 3
      end
    end
  end