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: clone_test.rb
    path of file: ./repos/rugged/test/online
    
    the code of the file until where you have to start completion: require 'test_helper'

cla
    
  def test_clone_over_git
    skip unless git_creds?
    Dir.mktmpdir do |dir|
      repo = Rugged::Repository.clone_at(ENV['GITTEST_REMOTE_GIT_URL'], dir)

      assert_instance_of Rugged::Repository, repo
    end
  end