# File lib/fog/compute/requests/aws/allocate_address.rb, line 28
        def allocate_address
          response = Excon::Response.new
          if describe_addresses.body['addressesSet'].size < self.data[:limits][:addresses]
            response.status = 200
            public_ip = Fog::AWS::Mock.ip_address
            data ={
              'instanceId' => nil,
              'publicIp'   => public_ip
            }
            self.data[:addresses][public_ip] = data
            response.body = {
              'publicIp'  => public_ip,
              'requestId' => Fog::AWS::Mock.request_id
            }
            response
          else
            response.status = 400
            response.body = "<?xml version=\"1.0\"?><Response><Errors><Error><Code>AddressLimitExceeded</Code><Message>Too many addresses allocated</Message></Error></Errors><RequestID>#{Fog::AWS::Mock.request_id}</RequestID></Response>"
            raise(Excon::Errors.status_error({:expects => 200}, response))
          end
        end