when:
        def result = scheduleAndRun(services) { builder ->
            builder.withWorkGraph(build.state) { graphBuilder ->
                def task = task(build, node)
                graphBuilder.addEntryTasks([task])
            }
            builder.withWorkGraph(childBuild.state) { graphBuilder ->
                def task = task(childBuild, childNode)

        return graph.scheduleWork(graphBuilder -> {
            if (selector != null) {
                graphBuilder.addFinalization(targetBuild, selector::postProcessExecutionPlan);
            }
            graphBuilder.withWorkGraph(targetBuild, builder -> builder.addRequestedTasks(selector));
        });
    }

        def workGraph = Mock(BuildWorkGraph)
        def build = build(id, workGraphController)

        when:
        graph.withNewWorkGraph { g ->
            def f = g.scheduleWork { b ->
                b.withWorkGraph(build) {}
            }
            f.runWork().rethrow()
        }

        then:
        1 * workGraphController.newWorkGraph() >> workGraph
        1 * preparer.prepareToScheduleTasks(_)

         */
        ExecutionResult<Void> runWork();
    }

    interface Builder {
        /**
         * Adds nodes to the work graph for the given build.
         */
        void withWorkGraph(BuildState target, Consumer<? super BuildLifecycleController.WorkGraphBuilder> action);

        /**
         * Adds the given tasks and their dependencies to the work graph.
         */

        public DefaultBuildTreeWorkGraphBuilder(DefaultBuildTreeWorkGraph owner) {
            this.owner = owner;
        }

        @Override
        public void withWorkGraph(BuildState target, Consumer<? super BuildLifecycleController.WorkGraphBuilder> action) {
            buildControllerOf(target).populateWorkGraph(action);
        }

        @Override

            graphBuilder?.invoke(builder, rootBuildState())

            for (build in builds) {
                if (build is BuildWithWork) {
                    builder.withWorkGraph(build.build.state) {
                        it.setScheduledWork(build.workGraph)
                    }
                }
            }
        }
    }

    private
    fun rootBuildState() =