Android Studio + Spek Integration

Question

I am trying to add a Spek testing environment to my Android Studio project. Following the instructions here , I ended up build.gradle following to my build.gradle module:

 testCompile 'org.jetbrains.spek:spek-api:1.1.5' testCompile 'junit:junit:4.12' testCompile "org.junit.platform:junit-platform-runner:1.0.0" testRuntimeOnly 'org.jetbrains.spek:spek-junit-platform-engine:1.1.5' 

Then I annotated my test using @RunWith(JUnitPlatform::class)

However, when I try to run the test, I get: org.junit.platform.commons.util.PreconditionViolationException: Cannot create Launcher without at least one TestEngine; consider adding an engine implementation JAR to the classpath org.junit.platform.commons.util.PreconditionViolationException: Cannot create Launcher without at least one TestEngine; consider adding an engine implementation JAR to the classpath

Any idea what I am missing?

Answer 1

(for future reference)
To use Kotlin and Spek + JUnit5 in Android Studio, you need the following:

In the project build.gradle project you need:

 buildscript { ext.kotlin_version = '1.2.10' ext.JUnit5_version = '1.0.30' repositories { google() jcenter() } dependencies { classpath 'com.android.tools.build:gradle:3.0.1' classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" classpath "de.mannodermaus.gradle.plugins:android-junit5:$JUnit5_version" } } 

In the module build.gradle module you need:

 apply plugin: 'com.android.application' apply plugin: 'kotlin-android' apply plugin: 'kotlin-android-extensions' apply plugin: "de.mannodermaus.android-junit5" android { ... sourceSets { test.java.srcDirs += 'src/test/kotlin' androidTest.java.srcDirs += 'src/androidTest/kotlin' } } project.ext { spekVersion = "1.1.5" } dependencies { ... // // TESTS testImplementation("org.jetbrains.spek:spek-api:$spekVersion") { exclude group: "org.jetbrains.kotlin" } testImplementation("org.jetbrains.spek:spek-junit-platform-engine:$spekVersion") { exclude group: "org.junit.platform" exclude group: "org.jetbrains.kotlin" } testImplementation "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version" testImplementation junit5.unitTests() // see https://github.com/mannodermaus/android-junit5#android-studio-workarounds testCompileOnly junit5.unitTestsRuntime() } 

Simple Spek Test

 class ExampleSpekTest : Spek({ val x = 2 val y = 3 given("x = $x and y = $y") { val sum = x + y it("should be that x + y = 5") { Assert.assertEquals(5, sum) } it("should be that x - y = -1") { val subtract = x - y Assert.assertEquals(-1, subtract) } } }) 

Cm
- official documentation http://spekframework.org/
- the official plugin for launching specifications from the IDE https://github.com/raniejade/spek-idea-plugin
- Tests using the Spek Framework - BDD Style vs JUnit Style https://www.youtube.com/watch?v=asDZ_7ZUiX4
- Simple configuration of Android Spek and JUnit5 https://gist.github.com/Mugurell/088daf42a4d60240ba6993681e0537a5

Answer 2

This apparently won't work ... I ended up using kotlintest , which is much easier to integrate