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: geminabox_test_case.rb
    path of file: ./repos/geminabox/test/test_support
    
    the code of the file until where you have to start completion: require 'minitest/unit'
require 'timeout'
require 'socket'
require 'rack'
require 'uri'
require 'fileutils'
require 'tempfile'
require 'webrick'
require 'webrick/https'
require 'logger'
require 'rack/auth/abstract/handler'
require 'rack/auth/abstract/request'

class Geminabox::TestCase < Minitest::Test
  class << self
    # DSL
    def url(url = nil)
      @url ||= url || "http:/
    
  def start_app!
    clean_data_dir
    @test_server_port = find_free_port
    log_output = log_to_stdout? ? STDOUT : File::NULL
    server_options = {
      :app => config.to_app,
      :Port => @test_server_port,
      :AccessLog => [],
      :Logger => WEBrick::Log::new(log_output, Logger::INFO)
    }

    if config.ssl
      server_options.merge!(
        :SSLEnable => true,
        :SSLVerifyClient => OpenSSL::SSL::VERIFY_NONE,
        :SSLPrivateKey => OpenSSL::PKey::RSA.new(File.read(fixture("localhost.key"))),
        :SSLCertificate => OpenSSL::X509::Certificate.new(File.read(fixture("localhost.crt"))),
        :SSLCertName => [["CN", "localhost"]]
      )
    end