then:
        def buildTask = project.tasks.getByName("eclipseClosedDependencies")
        buildTask != null
        buildTask.taskDependencies.getDependencies(buildTask).collect { it.path }.sort() == ([':child1:jar', ':child1:testJar'])
        project.getGradle().getStartParameter().getTaskNames() == ['eclipseClosedDependencies']
    }

    def "build task is not added if no projects are closed"() {
        setup:

        then:
        !taskExecuted(out, ":eclipseClosedDependencies")


    }

    def "task name is deduplicated"() {
        setup:
        multiProjectBuildInRootFolder("root", ["child1", "child2"]) {
            buildFile << """
            subprojects {
                apply plugin: 'java-library'
            }
            task eclipseClosedDependencies (){}
            project(":child2") {

        b1Model.projectDependencies.isEmpty()
        b1Model.classpath.collect { it.file.name } == ['buildC-1.0.jar']
        taskExecuted(out, ":eclipseClosedDependencies")
        taskExecuted(out, ":buildC:jar")
    }

    private static def taskExecuted(ByteArrayOutputStream out, String taskPath) {
        out.toString().contains("> Task $taskPath")
    }

            StartParameter startParameter = rootGradle.getStartParameter();
            List<String> taskPaths = new ArrayList<>(startParameter.getTaskNames());
            String parentTaskName = parentTaskName(rootProject, "eclipseClosedDependencies");
            Task task = rootProject.task(parentTaskName);
            task.dependsOn(buildDependencies.toArray(new Object[0]));
            taskPaths.add(parentTaskName);