module Excon
  module Test
    module Plugin
      module Server
        module Unicorn
          def start(app_str = app, bind_uri = bind)
            bind_uri = URI.parse(bind_uri) unless bind_uri.is_a? URI::Generic
            is_unix_socket = (bind_uri.scheme == "unix")
            if is_unix_socket
              bind_str = bind_uri.to_s
            else
              host = bind_uri.host.gsub(/[\[\]]/, '')
              bind_str = "#{host}:#{bind_uri.port}"
            end
            args = [
              RbConfig.ruby,
              '-S',
              'unicorn',
              '--no-default-middleware',
              '-l',
              bind_str,
              app_str
            ]
            open_process(*args)
            process_stderr = ''
            line = ''
            until line.include?('worker=0 ready')
              line = error.gets
              raise process_stderr if line.nil?
              process_stderr << line
              fatal_time = elapsed_time > timeout
              raise 'unicorn server has taken too long to start' if fatal_time
            end
            true
          end
        end
      end
    end
  end
end