boolean authenticate(String username, PublicKey key, ServerSession session) {
                return true
            }
        })
        return sshServer
    }


    boolean hasFile(String filePathToCheck) {
        new File(baseDir, filePathToCheck).exists()
    }

    TestFile file(String expectedPath) {
        new TestFile(new File(baseDir, expectedPath))
    }

    URI getUri() {

    TestFile sha512File(TestFile file) {
        hashFile(file, Hashing.sha512())
    }

    TestFile getMd5File(TestFile file) {
        getHashFile(file, Hashing.md5())
    }

    TestFile md5File(TestFile file) {
        hashFile(file, Hashing.md5())
    }

    private TestFile hashFile(TestFile file, HashFunction hashFunction) {
        def hashFile = getHashFile(file, hashFunction)

        assertThat(lifecycles, hasSize(4));
        assertThat(DefaultLifecycles.STANDARD_LIFECYCLES, arrayWithSize(4));
    }

    @Test
    void testDefaultLifecycle() {
        final Lifecycle lifecycle = getLifeCycleById("default");
        assertThat(lifecycle.getId(), is("default"));
        assertThat(lifecycle.getPhases(), hasSize(23));
    }

    @Test
    void testCleanLifecycle() {

                @TaskAction
                void run() {
                    def input = inputDirectory.file("output.txt").get().asFile
                    if (input.file) {
                        outputFile.asFile.get().text = input.text
                    } else {
                        outputFile.asFile.get().text = "<empty>"
                    }
                }
            }

            task sourceTask(type: Producer) {

        srcDir = projectDirectory.file('src').asFile
        println "Contents of $srcDir.name"
        collection.collect { projectDirectory.asFile.relativePath(it) }.sort().each { println it }

        srcDir = projectDirectory.file('src2').asFile
        println "Contents of $srcDir.name"
        collection.collect { projectDirectory.asFile.relativePath(it) }.sort().each { println it }
    }
}
// end::closure[]

        return gson.toJson(subprojects) + '\n'
    }

    private
    fun generateSubprojectsDirectories(): List<File> {
        val subprojectRoots = platformsFolder.asFile.listFiles(File::isDirectory).plus(subprojectsFolder.asFile).plus(testingFolder.asFile)
        return subprojectRoots.map { it.listFiles(File::isDirectory).asList() }.flatten()
    }

    private
    fun generateSubprojects(): List<GradleSubproject> {

        })

        srcDir = projectDirectory.file("src").asFile
        println("Contents of ${srcDir.name}")
        collection.map { it.relativeTo(projectDirectory.asFile) }.sorted().forEach { println(it) }

        srcDir = projectDirectory.file("src2").asFile
        println("Contents of ${srcDir.name}")
        collection.map { it.relativeTo(projectDirectory.asFile) }.sorted().forEach { println(it) }
    }
}
// end::closure[]

                def produce() {
                    dirName.get().asFile.text = 'dir'
                }
            }

            abstract class Consumer extends DefaultTask {

                @OutputFile
                abstract RegularFileProperty getOutputFile()

                @TaskAction
                def consume() {
                    outputFile.get().asFile.write('42')
                }
            }

        task.options.generatedSourceOutputDirectory.asFile.orNull == new File(project.buildDir, 'generated/sources/annotationProcessor/java/main')
        task.options.annotationProcessorGeneratedSourcesDirectory == task.options.generatedSourceOutputDirectory.asFile.orNull
        task.options.headerOutputDirectory.asFile.orNull == new File(project.buildDir, 'generated/sources/headers/java/main')

    abstract val optionalProjects: ListProperty<String>

    @get:Internal
    abstract val projectDependencies: ConfigurableFileCollection

    @Input
    val runtime = externalDependencies.elements.map { it.map { it.asFile.name }.sorted() }

    @get:Internal
    abstract val externalDependencies: ConfigurableFileCollection

    @Input
    val projects = projectDependencies.elements.map { it.map { it.toGradleModuleName() }.sorted() }