[null, 'outputFile']                          | ['outputFile', null]           | true
        ['outputFile1', null]                         | ['outputFile1', 'outputFile2'] | false
        ['outputFile1', 'outputFile2', 'outputFile3'] | ['outputFile1', 'outputFile2'] | false
        ['outputFile1', 'outputFile2']                | ['outputFile2', 'outputFile3'] | false

                @$OutputFile.name
                File outputFile2 = new File(temporaryDir, "output2.txt")

                @$OutputFile.name
                File outputFile1 = new File(temporaryDir, "output1.txt")

                @$TaskAction.name
                void generate() {
                    outputFile1.text = "done1"
                    outputFile2.text = "done2"
                }

    @Input
    private String text
    @OutputFile
    private File outputFile

    public String getText() {
        return text
    }

    public void setText(String text) {
        this.text = text
    }

    public File getOutputFile() {
        return outputFile
    }

    public void setOutputFile(File outputFile) {
        this.outputFile = outputFile
    }

    @TaskAction

                @PathSensitive(PathSensitivity.NONE)
                File inputFile

                @OutputFiles
                Map<String, File> outputFiles

                @TaskAction
                void doSomething() {
                    outputFiles.each { String key, File outputFile ->
                        outputFile.text = key
                    }
                }
            }
        """

                        File outputFile = new File(outputPath);
                        outputFiles.put(outputPath, OutputKind.OUTPUT);
                        File outputFileParent = outputFile.getParentFile();
                        while (outputFileParent != null) {
                            String parentPath = outputFileParent.getPath();
                            if (outputFiles.getIfPresent(parentPath) != null) {

        @InputFile
        File inputFile
        @InputDirectory
        File inputDirectory
        @InputFiles
        File inputFiles
        @OutputFile
        File outputFile
        @OutputFiles
        Set<File> outputFiles
        @OutputDirectory
        File outputDirectory
        @OutputDirectories
        Set<File> outputDirectories
        @Destroys
        Set<File> destroys

        touch(task.outputFiles.get(0).getParentFile())

        when:
        execute(task)

        then:
        def e = thrown WorkValidationException
        validateException(task, e, cannotCreateParentDirectories {
            property('outputFiles')
                .file(task.outputFiles[0])
                .ancestorIsNotDirectory(task.outputFiles[0].parentFile)
                .includeLink()

    final inputFiles = [file: [inputFile], dir: [inputDir], missingFile: [missingInputFile]]
    final outputFiles = [file: outputFile, missingFile: missingOutputFile]
    final outputDirs = [emptyDir: emptyOutputDir, dir: outputDir, missingDir: missingOutputDir]
    final createFiles = [outputFile, outputDirFile, outputDirFile2] as Set

    def unitOfWork = builder.build()

                @Input
                String message = "Hello World"
                @OutputFile
                File outputFile = new File(temporaryDir, "output.txt")

                @TaskAction
                void generate() {
                    outputFile.text = message
                }
            }

            @DisableCachingByDefault

            }
        """.stripIndent()


        def outputFile = file('build/output.txt')
        outputFile.text = "pre-existing"
        file('input.txt').text = 'input file'

        expect:
        fails('myTask')
        failureDescriptionContains(cannotCreateRootOfFileTree {
            property('output')
                .dir(outputFile)
                .includeLink()
        })