Update Jenkinsfile

Jenkinsfile

@@ -1,21 +1,32 @@
 pipeline {
     agent none
     stages {
+        stage('test') {
+            steps {
+                script {
+                    echo "Testing the application..."
+                    echo "Executing pipeline for branch $BRANCH_NAME"
+                }
+            }
+        }
         stage('build') {
+            when {
+                expression {
+                   BRANCH_NAME == 'master' 
+                }
+            }
             steps {
                 script {   
                     echo "Building the application..."    
                 }
             }
         }
-        stage('test') {
+        stage('deploy') {
-            steps {
+            when {
-                script {
+                expression {
-                    echo "Testing the application..."
+                   BRANCH_NAME == 'master' 
                 }
             }
-        }
-        stage('deploy') {
             steps {
                 script {
                     echo "Deploying the application..."