pipeline{
    agent {
      docker{
        image 'node:8.16-alpine'
      }

    }

    stages{
        stage("build"){
            when{
              changeset "**/result/**"
            }
            steps{
                echo "Building result app..."
                dir("result"){
                  sh 'npm install'
                }
            }
        }
        stage("test"){
            when{
              changeset "**/result/**"
            }
            steps{
                echo "Testing result app..."
                dir("result"){
                  sh 'npm test'
                }
            }
        }
    }

    post{
        always{
            echo "This pipeline run is completed.."
        }
    }
}