Added Jenkinsfile

Jenkinsfile

@@ -1,19 +1,45 @@
 pipeline {
   agent any
   stages {
-    stage('pytest') {
+    stage('Create temporary directory') {
       steps {
-        sh '''mkdir -p /tmp/jenkins-venv
-              python3 -m venv /tmp/jenkins-venv
-              source /tmp/jenkins-venv/bin/activate
-              pip install -U pytest setuptools setuptools-git-version
-              git status
-              git tag
-              python3 setup.py install
+        sh 'mkdir -p /tmp/jenkins-venv'
+      }
+    }
+
+    stage('Create virtual env') {
+      steps {
+        sh '''
+              python3 -m venv /tmp/jenkins-venv'''
+      }
+    }
+
+    stage('Start virtual env') {
+      steps {
+        sh '              source /tmp/jenkins-venv/bin/activate'
+      }
+    }
+
+    stage('Install build dependencies') {
+      steps {
+        sh '''
+              pip install -U pytest setuptools setuptools-git-version'''
+      }
+    }
+
+    stage('Install pytest') {
+      steps {
+        sh '''python3 setup.py install
               pytest
 '''
       }
     }
 
+    stage('Run pytest') {
+      steps {
+        sh 'pytest'
+      }
+    }
+
   }
-}
+}