gradle.rootProject >> rootProject
    }

    def "configures build for standard mode"() {
        when:
        configurer.prepareProjects(gradle)

        then:
        1 * projectConfigurer.configureHierarchy(rootProject)
    }

    def "configures root build for on demand mode"() {
        when:
        configurer.prepareProjects(gradle)

        then:
        gradle.rootBuild >> true

     */
    void configureFully(ProjectState projectState);

    /**
     * Configures the given project and all its sub-projects.
     */
    void configureHierarchy(ProjectInternal project);

        if (cancellationToken.isCancellationRequested()) {
            throw new BuildCancelledException();
        }
        projectState.ensureTasksDiscovered();
    }

    @Override
    public void configureHierarchy(ProjectInternal project) {
        configure(project);
        for (Project sub : project.getSubprojects()) {
            configure((ProjectInternal) sub);
        }
    }

    }

    @Override
    public void prepareProjects(GradleInternal gradle) {
        if (!buildModelParameters.isConfigureOnDemand() || !gradle.isRootBuild()) {
            projectConfigurer.configureHierarchy(gradle.getRootProject());
            new ProjectsEvaluatedNotifier(buildOperationRunner).notify(gradle);
        }
    }

        then:
        1 * projectConfigurer.configure(projectModel1)
        1 * resolver.tryFindUnqualifiedTaskCheaply("b", projectModel1) >> false
        1 * projectConfigurer.configureHierarchy(projectModel1)
        1 * resolver.selectWithName("b", projectModel1, true) >> selectionResult
        _ * selectionResult.collectTasks(_) >> { it[0] << excluded }
        0 * _

        and:

        if (!includeSubprojects) {
            configurer.configure(targetProject.getMutableModel());
        } else {
            configurer.configureHierarchy(targetProject.getMutableModel());
        }

        TaskSelectionResult tasks = taskNameResolver.selectWithName(taskName, targetProject.getMutableModel(), includeSubprojects);
        if (tasks != null) {