Setting Up your Java Project for JUnit 5

junit5-build.gradle

apply plugin: "java"

// Enable the JUnit platform through the test closure; 
// which has been providing the method useJUnitPlatform since the release of gradle 4.6
test {
    useJUnitPlatform {
        includeTags "slow"
        excludeEngines "my-engine"
    }
}

//  Add the required libraries to you dependencies block
dependencies {

// In order to write JUnit Jupiter tests, add the JUnit Jupiter API artifact to be available at compile time & 
// JUnit Jupiter Engine artifact to be available at runtime
    testImplemenation "org.junit.jupiter:junit-jupiter-api:5.3.1"
    testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:5.3.1"

// Backward Compatibility Support; To enhance your existing codebase with JUnit 5
    testImplemenation "junit:junit:4.12"
    testRuntimeOnly "org.junit.vintage:junit-vintage-engine:5.3.1"
}