Add initial Jenkinsfile2

Jenkinsfile

@@ -1,14 +1,29 @@
 pipeline {
-    agent none 
+    agent none
     stages {
-        stage('Build') { 
+        stage('Build') {
             agent {
                 docker {
-                    image 'python:2-alpine' 
+                    image 'python:2-alpine'
                 }
             }
             steps {
-                sh 'python -m py_compile sources/add2vals.py sources/calc.py' 
+                sh 'python -m py_compile sources/add2vals.py sources/calc.py'
+            }
+        }
+        stage('Test') { 
+            agent {
+                docker {
+                    image 'qnib/pytest' 
+                }
+            }
+            steps {
+                sh 'py.test --verbose --junit-xml test-reports/results.xml sources/test_calc.py' 
+            }
+            post {
+                always {
+                    junit 'test-reports/results.xml' 
+                }
             }
         }
     }