when:
        inputDir.file('.gitignore').text = "some ignored file"
        inputDir.file('#ignored#').text = "some ignored file"
        inputDir.file('.git/any-name.txt').text = "some ignored file"
        inputDir.file('something/.git/deeper/dir/structure/any-name.txt').text = "some ignored file"
        inputDir.file('._ignored').text = "some ignored file"
        inputDir.file('some-file.txt~').text = "some ignored file"

                @InputDirectory
                Path inputDir
                @OutputFile
                Path outputFile
                @OutputDirectory
                Path outputDir

                @TaskAction
                def go() {
                    outputFile.toFile().text = inputFile.toFile().text
                    inputDir.toFile().listFiles().each { f -> outputDir.resolve(f.name).toFile().text = f.text }

        _ * a.outputDirectory >> file("inputDir")
        def projectB = project(project, "b")
        Task b = task("b", project: projectB, type: AsyncWithDestroysFile)
        _ * b.destroysFile >> file("inputDir")
        def projectC = project(project, "c")
        Task c = task("c", project: projectC, type: AsyncWithInputDirectory, dependsOn: [a])
        _ * c.inputDirectory >> file("inputDir")

import org.gradle.api.tasks.*

public class DirTransformerTask extends DefaultTask {
    private File inputDir
    private File outputDir

    @InputDirectory
    public File getInputDir() {
        return inputDir
    }

    public void setInputDir(File inputDir) {
        this.inputDir = inputDir
    }

    @OutputDirectory
    public File getOutputDir() {
        return outputDir
    }

                sources.set(file("inputDir"))
                outputFile.set(file("build/outputFile.txt"))
                ${ api == Api.RUNTIME_API
                    ? "inputs.dir(sources).withPathSensitivity(PathSensitivity.RELATIVE).withPropertyName('sources')"
                    : "" }
            }
        """
        def inputDir = file("inputDir").createDir()
        inputDir.createDir("some/empty/sub-directory")

    final inputFile = temporaryFolder.createFile("input-file")
    final inputDir = temporaryFolder.createDir("input-dir")
    final inputDirFile = inputDir.file("input-file2").createFile()
    final missingInputFile = temporaryFolder.file("missing-input-file")
    final inputFiles = [file: [inputFile], dir: [inputDir], missingFile: [missingInputFile]]
    final outputFiles = [file: outputFile, missingFile: missingOutputFile]

        1 * visitor.visitInputProperty('bean.nestedInput', { it.call() == 'nested' }, false)
        1 * visitor.visitInputFileProperty('bean.inputDir', _, _, _, _, _, _, InputFilePropertyType.DIRECTORY)

        1 * visitor.visitOutputFileProperty('outputFile', false, { it.call().path == 'output' }, OutputFilePropertyType.FILE)

        validateException(task, e, inputDoesNotExist {
            property('inputDir')
                .dir(missingDir)
                .includeLink()
        })
    }

    def validationActionFailsWhenInputDirectoryIsAFile() {
        given:
        def task = expectTaskCreated(TaskWithInputDir, existingFile)
        touch(task.inputDir)

        when:
        execute(task)

        then:

        buildFile << """
            task incrementalTask(type: MyIncrementalTask) {
                inputDir = file('src')
            }

            class MyIncrementalTask extends DefaultTask {
                ${supportsInputChanges ? "@Incremental" : ""}
                @InputDirectory
                def File inputDir
                @TaskAction
                void doSomething(${parameterType} inputs) {}

                inputDir = file("inputs")
                inputFile = file("input.txt")
                input = "This is the text"
                outputDir = file("$buildDir/outputDir")
                outputFile = file("$buildDir/outputFile")
            }

            abstract class MyTask extends DefaultTask {
                @InputDirectory File inputDir
                @Input String input