# File lib/fog/ibm/requests/compute/create_instance.rb, line 60
        def create_instance(name, image_id, instance_type, location, options={})
          response = Excon::Response.new
          # Since we want to test error conditions, we have a little regex that traps specially formed
          # instance type strings.
          case name
          when /FAIL:\ (\d{3})/
            response.status = $1.to_i
            raise Excon::Errors.status_error({:expects => 200}, response)
          else
            instance = Fog::IBM::Mock.create_instance(name, image_id, instance_type, location, options)
            self.data[:instances][instance['id']] = instance
            response.status = 200
            response.body = {"instances" => [ instance ]}
            response
          end
        end