class ActionDispatch::TestResponse

See Response for more information on controller response objects.
controller actions.
TestResponse, which represent the HTTP response results of the requested
and ActionDispatch::Integration::Session#post return objects of class
Integration test methods such as ActionDispatch::Integration::Session#get

def self.from_response(response) 

def self.from_response(response)
  new.tap do |resp|
    resp.status  = response.status
    resp.headers = response.headers
    resp.body    = response.body
  end
end