class Capybara::Server

def initialize(app, port = Capybara.server_port, host = Capybara.server_host, server_errors = Capybara.server_errors)
  @app = app
  @server_thread = nil # suppress warnings
  @host, @port, @server_errors = host, port, server_errors
  @port ||= Capybara::Server.ports[port_key]
  @port ||= find_available_port(host)
end