addon.gradle

SourceSet functionalTestSet = null

sourceSets {
    functionalTestSet = create("functionalTest") {
        java {
            srcDir("src/functionalTest/java")
            compileClasspath += sourceSets.patchedMc.output + sourceSets.main.output
        }
    }
}

configurations { configs ->
    // Keep all dependencies from the main mod in the functional test mod
    named(functionalTestSet.compileClasspathConfigurationName).configure {it.extendsFrom(named("compileClasspath").get())}
    named(functionalTestSet.runtimeClasspathConfigurationName).configure {it.extendsFrom(named("runtimeClasspath").get())}
    named(functionalTestSet.annotationProcessorConfigurationName).configure {it.extendsFrom(named("annotationProcessor").get())}
}

tasks.register(functionalTestSet.jarTaskName, Jar) {
    from(functionalTestSet.output)
    archiveClassifier.set("functionalTests")
    // we don't care about the version number here, keep it stable to avoid polluting the tmp directory
    archiveVersion.set("1.0")
    destinationDirectory.set(new File(buildDir, "tmp"))
}
tasks.named("assemble").configure {
    dependsOn(functionalTestSet.jarTaskName)
}

// Run tests in the default runServer/runClient configurations
tasks.named("runServer", JavaExec).configure {
    dependsOn(functionalTestSet.jarTaskName)
    classpath(configurations.named(functionalTestSet.runtimeClasspathConfigurationName), tasks.named(functionalTestSet.jarTaskName))
}

tasks.named("runClient", JavaExec).configure {
    dependsOn(functionalTestSet.jarTaskName)
    classpath(configurations.named(functionalTestSet.runtimeClasspathConfigurationName), tasks.named(functionalTestSet.jarTaskName))
}