Force fake response using ActiveMerchant response

Question

have a transaction model similar to RailsCasts ActiveMerchant tutorial.

How can I create a fake response?

Tried something like the following but no luck.

response = @success=true, @params = {"ref" => "123"}, @authorization = "54321", ...

models/order_transaction.rb

class OrderTransaction < ActiveRecord::Base
  belongs_to :order
  serialize :params

  def response=(response)
    self.success       = response.success?
    self.authorization = response.authorization
    self.message       = response.message
    self.params        = response.params
  rescue ActiveMerchant::ActiveMerchantError => e
    self.success       = false
    self.authorization = nil
    self.message       = e.message
    self.params        = {}
  end
end

Answer 1

you can do something like

a = OpenStruct.new
def a.success?
 true
end