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_gem_commands_uninstall_command.rb
    path of file: ./repos/jruby/test/mri/rubygems
    
    the code of the file until where you have to start completion: # frozen_string_literal: true
require_relative 'installer_test_case'
require 'rubygems/commands/uninstall_command'

class TestGemCommandsUninstallCommand < Gem::InstallerTestCase
  def setup
    super
    @cmd = Gem::Command
    
  def test_execute_two_version
    @cmd.options[:args] = %w[a b]
    @cmd.options[:version] = Gem::Requirement.new("> 1")

    use_ui @ui do
      e = assert_raise Gem::MockGemUi::TermError do
        @cmd.execute
      end

      assert_equal 1, e.exit_code
    end

    msg = "ERROR:  Can't use --version with multiple gems. You can specify multiple gems with" \
      " version requirements using `gem uninstall 'my_gem:1.0.0' 'my_other_gem:~>2.0.0'`"

    assert_empty @ui.output
    assert_equal msg, @ui.error.lines.last.chomp
  end