import org.gradle.api.InvalidUserDataException
import org.gradle.test.fixtures.AbstractProjectBuilderSpec

import static org.gradle.util.TestUtil.createChildProject

class NewDefaultProjectTest extends AbstractProjectBuilderSpec {
    def "provides all tasks recursively"() {
        def a = createChildProject(project, "a")

        [project, a].each { it.task "foo"; it.task "bar" }

        when:
        def rootTasks = project.getAllTasks(true)

    }

    def "build other projects"() {
        given:
        def commonProject = TestUtil.createChildProject(project, "common")
        def middleProject = TestUtil.createChildProject(project, "middle")
        def appProject = TestUtil.createChildProject(project, "app")

        when:
        project.pluginManager.apply(JavaPlugin)
        commonProject.pluginManager.apply(JavaPlugin)

        return this;
    }

    /**
     * Creates the project.
     *
     * @return The project
     */
    public Project build() {
        if (parent != null) {
            return impl.createChildProject(name, parent, projectDir);
        }
        return impl.createProject(name, projectDir, gradleUserHomeDir);
    }

            .withName("test-project")
        if (userHomeDir != null) {
            builder.withGradleUserHomeDir(userHomeDir)
        }
        return builder.build()
    }

    static ProjectInternal createChildProject(ProjectInternal parent, String name, File projectDir = null) {
        return ProjectBuilder
            .builder()
            .withName(name)
            .withParent(parent)

import java.util.function.Function;

import static org.gradle.internal.concurrent.CompositeStoppable.stoppable;

public class ProjectBuilderImpl {
    private static ServiceRegistry globalServices;

    public Project createChildProject(String name, Project parent, @Nullable File projectDir) {
        ProjectInternal parentProject = (ProjectInternal) parent;