build.gradle

apply plugin: 'kotlin'
apply plugin: 'org.junit.platform.gradle.plugin'

buildscript {
    ext {
        kotlin_version = '1.1.2'
        junit_version = '1.0.0-M4'
    }
    repositories {
        jcenter()
    }
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath "org.junit.platform:junit-platform-gradle-plugin:$junit_version"
    }
}

repositories {
    jcenter()
}

junitPlatform {
    filters {
        engines {
            include 'spek'
        }
    }
}

dependencies {
    compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
    compile "org.jetbrains.kotlin:kotlin-stdlib-jre8"

    testCompile "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
    testCompile "org.jetbrains.spek:spek-api:$kotlin_version"
    testCompile "com.winterbe:expekt:0.5.0"
    testCompile "org.junit.platform:junit-platform-console:$junit_version"
    testRuntime "org.jetbrains.spek:spek-junit-platform-engine:$kotlin_version"
}