pipeline {
    agent {
        docker { image 'node:18.18.2-alpine3.18' }
    }

    stages {
        stage('Build') {
            steps {
                echo 'Building..'
            }
        }
        stage('Test') {
            when { expression { return fileExists ('CenaMieszkaniaDesign.py') } }
            steps {
                echo "file exists"
            }
    }

        }
        stage('Deploy') {
            steps {
                echo 'Deploying....'
            }
        }
    }
}