override fun afterTest(test: TestDescriptor, result: TestResult) = Unit
            override fun beforeSuite(suite: TestDescriptor) {
                if (suite.parent == null) {
                    forEachJavaProcess { pid, _ ->
                        // processes that exist before the test suite execution should
                        // not trigger a warning
                        daemonPids += pid
                    }

 * limitations under the License.
 */

import com.gradle.develocity.agent.gradle.test.DevelocityTestConfiguration
import gradlebuild.archtest.PackageCyclesExtension

plugins {
    `java-library`
    `jvm-test-suite`
    id("gradlebuild.dependency-modules")
    id("gradlebuild.code-quality")
}

val packageCyclesExtension = extensions.create<PackageCyclesExtension>("packageCycles").apply {
    excludePatterns.convention(emptyList())

    def forkingOptions(Jvm javaVersion) {
        return """
            options.fork = true
            // We don't use toolchains here for consistency with the rest of the test suite
            options.forkOptions.javaHome = file('${javaVersion.javaHome}')
        """
    }

    def setupBuild(Jvm javaVersion) {
        file('buildSrc/build.gradle') << """
            plugins {

Provides cross-cutting integration with Gradle's commercial product.

#### IDE integration

Provides cross-cutting integration with IDEs and other tooling.

#### Build infrastructure

Provides build logic, libraries, test suites and infrastructure to support developing and releasing Gradle.

#### Documentation

Provides cross-cutting Gradle documentation and samples, along with the infrastructure to write, test, publish and host the documentation.

### IDE integration

Provides cross-cutting integration with IDEs and other tooling.

### Build infrastructure

Provides build logic, libraries, test suites and infrastructure to support developing and releasing Gradle.

### Documentation

Provides cross-cutting Gradle documentation and samples, along with the infrastructure to write, test, publish and host the documentation.

    def setup() {
        buildFile << """
            plugins {
                id 'application'
            }

            ${mavenCentralRepository()}

            testing.suites.test.useJUnit()

            application {
                mainClass = 'example.Main'
            }
        """

        file("src/main/java/example/Main.java") << """
            package example;

     * That is, the term “file” is used in the java.io.File sense, not the regular file sense.
     *
     * @param files the site of files to find the encompassing roots of
     * @return the encompassing roots
     */
    public static Collection<? extends File> calculateRoots(Iterable<? extends File> files) {

 * <p>
 * Execution of user code listeners are observable as build operations, with provenance information.
 * Internal listeners are not.
 * This is implemented by decorating user code listeners at the registration site.
 * This interface is used to suppress the decoration.
 * <p>
 * User can generally do very little about internal listeners (i.e. they are a fixed cost),
 * while they do have control of user code listeners.
 * <p>

    def 'can register KotlinClosure listener'() {
        given:
        buildKotlinFile """
            plugins {
                id("java-library")
            }
            testing {
                suites {
                    named<JvmTestSuite>("test") {
                        useJUnitJupiter()
                    }
                }
            }
            tasks.test {
                onOutput(

image::images/C4_3_Component.svg[]

NOTE: This diagram diverges from the C4 Model because the scope is the whole Kotlin DSL system instead of having one diagram per container.