build.gradle

apply plugin: 'groovy'

repositories {
    mavenCentral()
}

dependencies {
    compile 'org.codehaus.groovy:groovy-all:2.4.13'
    compile 'com.cloudbees:groovy-cps:1.1'

    testCompile 'org.assertj:assertj-core:3.9.0'
    testCompile "org.junit.jupiter:junit-jupiter-api:5.0.3"
    testCompile 'org.junit.jupiter:junit-jupiter-params:5.0.3'

    testRuntime 'org.junit.jupiter:junit-jupiter-engine:5.0.3'
    testRuntime 'org.junit.jupiter:junit-jupiter-params:5.0.3'
}

compileTestGroovy {
    sourceCompatibility = 1.8
    targetCompatibility = 1.8
}

compileGroovy {
    sourceCompatibility = 1.8
    targetCompatibility = 1.8
}

test {
    useJUnitPlatform()
}
sourceSets {
    main {
        groovy {
            srcDirs = ['src', 'vars']
        }
    }
    test {
        groovy {
            srcDirs = ['test', 'varsTest']
        }
    }
}