build.gradle

plugins {
    id 'java'
    id 'eclipse' // optional (to generate Eclipse project files)
    id 'idea' // optional (to generate IntelliJ IDEA project files)
    id 'org.jetbrains.kotlin.jvm' version '1.2.71'
}

repositories {
    mavenCentral()
    jcenter()
    maven { url 'https://jitpack.io' }
}

dependencies {
    def junit4Version = '4.12'
    def junitVintageVersion = '5.3.2'
    def junitJupiterVersion = '5.3.2'
    def junitPlatformVersion = '1.3.2'

    // JUnit Jupiter
    testCompile("org.junit.jupiter:junit-jupiter-api:${junitJupiterVersion}")
    testCompile("org.junit.jupiter:junit-jupiter-params:${junitJupiterVersion}")
    testRuntime("org.junit.jupiter:junit-jupiter-engine:${junitJupiterVersion}") {
        because 'allows JUnit 5 tests to run'
    }

    // JUnit Vintage
    testCompile("junit:junit:${junit4Version}")
    testRuntime("org.junit.vintage:junit-vintage-engine:${junitVintageVersion}") {
        because 'allows JUnit 3 and JUnit 4 tests to run'
    }

    // JUnit Platform Launcher + Console
    testRuntime("org.junit.platform:junit-platform-launcher:${junitPlatformVersion}") {
        because 'allows tests to run from IDEs that bundle older version of launcher'
    }
    testRuntime("org.junit.platform:junit-platform-console:${junitPlatformVersion}") {
        because 'needed to launch the JUnit Platform Console program'
    }

    // Brahms - Maingine and Single-File Source-Code Test Engine
    testRuntime("de.sormuras:brahms:0.0.14") {
        because 'executes programs "public static void main(String...args)" as tests'
    }

    // Mainrunner
    testCompile("com.github.sormuras.mainrunner:mainrunner:1.0.0-M4") {
        because 'executes Java programs as tests, contains dedicated Java 8 and 11 implementations'
    }

    // JQwik
    testCompile('net.jqwik:jqwik:0.9.0')

    // Spek
    testCompile('org.jetbrains.spek:spek-api:1.2.1')
    testRuntime('org.jetbrains.spek:spek-junit-platform-engine:1.2.1')
    testCompile('org.jetbrains.kotlin:kotlin-stdlib')
    testCompile('org.jetbrains.kotlin:kotlin-reflect')

    // KotlinTest
    testCompile('io.kotlintest:kotlintest-runner-junit5:3.1.10')
    testRuntime('org.slf4j:slf4j-nop:1.7.25')
    // testRuntime('org.slf4j:slf4j-simple:1.7.25')
}

task consoleLauncherTest(type: JavaExec) {
    dependsOn testClasses
    def reportsDir = file("$buildDir/test-results")
    outputs.dir reportsDir
    classpath sourceSets.test.runtimeClasspath
    main 'org.junit.platform.console.ConsoleLauncher'
    args '--scan-classpath'
    args '--details', 'tree'
    args '--reports-dir', reportsDir
}

test {
    // useJUnitPlatform() ... https://github.com/gradle/gradle/issues/4912
    dependsOn consoleLauncherTest
    exclude '**/*'
}