module ActionController::Testing

def headers=(new_headers)
  @_response ||= ActionDispatch::Response.new
  @_response.headers.replace(new_headers)
end

def process_with_new_base_test(request, response)
  @_request = request
  @_response = response
  @_response.request = request
  ret = process(request.parameters[:action])
  if cookies = @_request.env['action_dispatch.cookies']
    cookies.write(@_response)
  end
  @_response.prepare!
  set_test_assigns
  ret
end

def set_test_assigns
  @assigns = {}
  (instance_variable_names - self.class.protected_instance_variables).each do |var|
    name, value = var[1..-1], instance_variable_get(var)
    @assigns[name] = value
  end
end