diff --git a/tests/integration_test.rs b/tests/integration_test.rs
index 6746125d..97803302 100644
--- a/tests/integration_test.rs
+++ b/tests/integration_test.rs
@@ -1,5 +1,5 @@
-use std::{net::IpAddr, str::FromStr};
-use dns_rust::{async_resolver::{config::ResolverConfig, AsyncResolver}, client::client_error::ClientError, domain_name::DomainName, message::{rdata::Rdata, resource_record::ResourceRecord},tsig};
+use std::{net::IpAddr, str::FromStr, thread, net::UdpSocket, time::Duration};
+use dns_rust::{async_resolver::{config::ResolverConfig, AsyncResolver}, client::client_error::ClientError, domain_name::DomainName, message::{rdata::Rdata,class_qclass::Qclass, type_qtype, resource_record::ResourceRecord, header::Header, DnsMessage},tsig::{self, TsigAlgorithm}};
 
 
 
@@ -13,6 +13,7 @@ async fn query_response(domain_name: &str, protocol: &str, qtype: &str) -> Resul
         domain_name,
         protocol,
         qtype,
+
         "IN").await;
 
     response.map(|lookup_response| lookup_response.to_vec_of_rr())
@@ -108,61 +109,66 @@ async fn no_resource_available() {
     println!("{:?}", response);
     assert!(response.is_err());
 }
-/* 
+
+
 ///RFC 8945 TSIG tests
 #[tokio::test]
 async fn tsig_signature() {
-    let sock = UdpSocket::bind("127.0.0.1:8001").expect("Puerto ocupado");
-
+    // global test variables
+    let key = b"1234567890";
+    let alg_name = TsigAlgorithm::HmacSha1;
+    let fudge = 0;
+    let time_signed = 0;
+    let id = 6502; 
     let mut dns_query_message =
             DnsMessage::new_query_message(
-                DomainName::new_from_string("uchile.cl".to_string()),
-                Qtype::A,
+                DomainName::new_from_string("nictest.cl".to_string()),
+                type_qtype::Qtype::A,
                 Qclass::IN,
                 0,
                 false,
-                1);
-    let signature = dns_rust::tsig::sign_tsig();
-    let digest = keyed_hash(b"alalalalalalalalalalalalalalalal", &dns_query_message.to_bytes()[..]);
-    let digstr = digest.to_string();
-    let x = format!("hmac-md5.sig-alg.reg.int.\n51921\n1234\n32\n{}\n1234\n0\n0", digstr);
-    
-    println!("El dig stirng es: {:#?}" , digstr);
-    let resource_record = TSigRdata::rr_from_master_file(
-        x.split_whitespace(),
-        56, 
-        "IN", 
-        String::from("uchile.cl"),
-        String::from("uchile.cl"));
-    
-    let mut vec = vec![];
-
-    vec.push(resource_record);
-
-    dns_query_message.add_additionals(vec);
-    
-    println!("{:#?}", dns_query_message);
-    
+                id);
+    let q_for_mac = dns_query_message.clone();
+    //Lanzamiento de threads
+    //Se lanza el servidor. Recibe un mensaje sin firmar, lo firma y lo reenvía
+    fn host(){
+        println!("I am a host");
+        let udp_socket = UdpSocket::bind("127.0.0.1:8002").expect("Failed to bind to address");
+        let mut buf = [0; 512];
+        
+        match udp_socket.recv_from(&mut buf) {
+        
+        Ok((size, source)) => {
+                println!("Received {} bytes from {}", size, source);
+                let mut data = DnsMessage::from_bytes(&buf[0..size]).unwrap();
+                println!("The data is {:?}", data);
+                tsig::sign_tsig(&mut data, b"1234567890",TsigAlgorithm::HmacSha1,0,0);
+                let response = &DnsMessage::to_bytes(&data);
+                udp_socket
+                    .send_to(&response, source)
+                    .expect("Failed to send response");
+                
+            }
+            Err(e) => {
+                eprintln!("Error receiving data: {}", e);
+                
+            }
+        }
+        
+    }
+    println!("Starting server");
+    let server_handle = thread::spawn(|| {
+        host();  
+        
+    });
+    thread::sleep(Duration::from_secs(2)); 
+    // se instancia un socket cliente que enviará y  mensajes
+    let client_sock = UdpSocket::bind("127.0.0.1:8001").expect("Nothing");
     let buf = dns_query_message.to_bytes();
+    client_sock.send_to(&buf,"127.0.0.1:8002").unwrap();
+    println!("Mensaje enviado");
+    server_handle.join().unwrap();
 
-    let s = sock.send_to(&buf, "127.0.0.1:8001").unwrap();
-    let response = query_response("example.com", "UDP", "MX").await;
-    
-    if let Ok(rrs) = response {
-        assert_eq!(rrs.len(), 1);
-
-        if let Rdata::MX(mxdata) = rrs[0].get_rdata() {
-            assert_eq!(
-                mxdata.get_exchange(),
-                DomainName::new_from_str(""));
 
-            assert_eq!(
-                mxdata.get_preference(),
-                0
-            )
-        } else { 
-            panic!("Record is not MX type");
-        }
-    }
 }
-*/
+   
\ No newline at end of file