How to use JUnit 5 with Gradle?

Question

I am trying to use JUnit 5 with Gradle after I succeeded in running a JUnit 4 test.

Expected result: Tthe JUnit 4 test gave a nice \'passed\' in the

Answer 1

You need the engines for both JUnit versions, and you need to apply the JUnit platform gradle plugin. I do not see that in your gradle file. Here is a working gradle build executing both JUnit 4 and 5:

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath ("org.junit.platform:junit-platform-gradle-plugin:1.0.0-M4")
    }
}

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

dependencies {
...
    testCompile("junit:junit:4.12")
    testRuntime("org.junit.vintage:junit-vintage-engine:4.12.0-M4")

    testCompile("org.junit.jupiter:junit-jupiter-api:5.0.0-M4")
    testRuntime("org.junit.jupiter:junit-jupiter-engine:5.0.0-M4")

    // Enable use of the JUnitPlatform Runner within the IDE
    testCompile("org.junit.platform:junit-platform-runner:1.0.0-M4")
}

junitPlatform {
    details 'tree'
}

See the JUnit doc form more information on that.