# File lib/fog/aws/requests/sqs/receive_message.rb, line 34
        def receive_message(queue_url, options = {})
          Excon::Response.new.tap do |response|
            if (queue = data[:queues][queue_url])
              max_number_of_messages = options['MaxNumberOfMessages'] || 1
              now = Time.now
              
              messages = []

              queue[:messages].values.each do |m|
                message_id = m['MessageId']

                invisible = if (received_handles = queue[:receipt_handles][message_id])
                  visibility_timeout = m['Attributes']['VisibilityTimeout'] || queue['Attributes']['VisibilityTimeout']
                  received_handles.any? { |handle, time| now < time + visibility_timeout }
                else
                  false
                end

                unless invisible
                  receipt_handle = Fog::Mock.random_base64(300)

                  queue[:receipt_handles][message_id] ||= {}
                  queue[:receipt_handles][message_id][receipt_handle] = now

                  m['Attributes'].tap do |attrs|
                    attrs['ApproximateFirstReceiveTimestamp'] ||= now
                    attrs['ApproximateReceiveCount'] = (attrs['ApproximateReceiveCount'] || 0) + 1
                  end

                  messages << m.merge({
                    'ReceiptHandle' => receipt_handle
                  })
                  break if messages.size >= max_number_of_messages
                end
              end

              response.body = {
                'ResponseMetadata' => {
                  'RequestId' => Fog::AWS::Mock.request_id
                },
                'Message' => messages
              }
              response.status = 200
            else
              response.status = 404
              raise(Excon::Errors.status_error({:expects => 200}, response))
            end
          end
        end