fix jenkinsfile num error

api/Jenkinsfile.ble_test

@@ -25,75 +25,78 @@ pipeline {
     stages {
 
         // ---------------------------------------------------------------
-        // 1️⃣  Prepare a unique screen session name
+        // 1️⃣  Generate a unique screen session name
         // ---------------------------------------------------------------
         stage('Prepare Screen Name') {
             steps {
                 script {
-                    // epoch seconds truncated to the last 6 digits
+                    // 1) Get epoch seconds (long)
-                    def epochSec = System.currentTimeMillis() / 1000
+                    long epochSec = (System.currentTimeMillis() / 1000L) as long
+
+                    // 2) Keep only the last 6 digits to avoid collisions
                     env.SCREEN_SESSION = "ble_test_${String.format('%06d', epochSec % 1_000_000)}"
                 }
             }
         }
 
         // ---------------------------------------------------------------
-        // 2️⃣  Verify / install screen (runs only once)
+        // 2️⃣  Ensure screen is installed (runs only once)
         // ---------------------------------------------------------------
         stage('Ensure screen is present') {
             steps {
                 sshagent([env.SSH_CREDENTIALS_ID]) {
-                    sh """
+                    sh '''\
-                    ssh -o StrictHostKeyChecking=no \\
+ssh -o StrictHostKeyChecking=no \
-                        -o ServerAliveInterval=60 \\
+    -o ServerAliveInterval=60 \
-                        -o ServerAliveCountMax=120 \\
+    -o ServerAliveCountMax=120 \
     root@${params.host_ip} <<'EOF'
-                        # If screen is missing, install it
 if ! command -v screen > /dev/null; then
     echo "screen not found – installing"
     apt-get update && apt-get install -y screen
 fi
 EOF
-                    """
+'''
                 }
             }
         }
 
         // ---------------------------------------------------------------
-        // 3️⃣  Run the BLE test in a detached screen session
+        // 3️⃣  Run the BLE test inside a detached screen session
         // ---------------------------------------------------------------
         stage('Run BLE Test') {
             steps {
-                retry(3) {
+                retry(3) {           // 3× retry on transient SSH hiccups
-                    timeout(time: 8, unit: 'HOURS') {
+                    timeout(time: 8, unit: 'HOURS') {   // 8‑hour hard timeout
                         sshagent([env.SSH_CREDENTIALS_ID]) {
-                            sh """
+                            sh '''\
-                            ssh -o StrictHostKeyChecking=no \\
+ssh -o StrictHostKeyChecking=no \
-                                -o ServerAliveInterval=60 \\
+    -o ServerAliveInterval=60 \
-                                -o ServerAliveCountMax=120 \\
+    -o ServerAliveCountMax=120 \
     root@${params.host_ip} <<'EOF'
-                                # Start the test in a detached screen session
+# Start test in detached screen
 screen -dmS ${env.SCREEN_SESSION} bash -c '
-                                    echo "===== BLE test starting: \$(date)" > /tmp/ble_test.log
+    echo "===== BLE test starting: $(date)" > /tmp/ble_test.log
     usbreset ${params.BT_USB_ID}
     sleep 5
     cd /opt/ble-test/ble_api
     git pull
     cd /opt/ble-test/ble_api/api
     python3 -u ${REMOTE_SCRIPT} ${params.test_count} 2>&1 | tee -a /tmp/ble_test.log
-                                    echo "===== BLE test finished: \$(date)" >> /tmp/ble_test.log
+    echo "===== BLE test finished: $(date)" >> /tmp/ble_test.log
 '
 # Give screen a moment to spin up
 sleep 2
 EOF
-                            """
+'''
                         }
 
-                        // Verify that the test finished
+                        // ------------------------------------------------------------------
-                        sh """
+                        // 3a.  Verify that the test finished successfully
-                        ssh -o StrictHostKeyChecking=no \\
+                        // ------------------------------------------------------------------
-                            -o ServerAliveInterval=60 \\
+                        sh '''\
-                            -o ServerAliveCountMax=120 \\
+ssh -o StrictHostKeyChecking=no \
+    -o ServerAliveInterval=60 \
+    -o ServerAliveCountMax=120 \
     root@${params.host_ip} <<'EOF'
 if grep -q "BLE test finished" /tmp/ble_test.log; then
     echo "Test completed successfully."
@@ -102,7 +105,7 @@ pipeline {
     exit 1
 fi
 EOF
-                        """
+'''
                     }
                 }
             }
@@ -115,16 +118,16 @@ pipeline {
     post {
         always {
             sshagent([env.SSH_CREDENTIALS_ID]) {
-                sh """
+                sh '''\
-                ssh -o StrictHostKeyChecking=no \\
+ssh -o StrictHostKeyChecking=no \
-                    -o ServerAliveInterval=60 \\
+    -o ServerAliveInterval=60 \
-                    -o ServerAliveCountMax=120 \\
+    -o ServerAliveCountMax=120 \
     root@${params.host_ip} <<'EOF'
 if screen -list | grep -q ${env.SCREEN_SESSION}; then
     screen -S ${env.SCREEN_SESSION} -X quit
 fi
 EOF
-                """
+'''
             }
         }
     }