func mockCRCResponse(svc *dynamodb.DynamoDB, status int, body, crc string) (req *aws.Request) { header := http.Header{} header.Set("x-amz-crc32", crc) req, _ = svc.ListTablesRequest(nil) req.Handlers.Send.PushBack(func(*aws.Request) { req.HTTPResponse = &http.Response{ StatusCode: status, Body: ioutil.NopCloser(bytes.NewReader([]byte(body))), Header: header, } }) req.Send() return }