@Override
    abstract AbstractCopyTask getTask()

    def "root level FileCopyDetails are DSL-enhanced"() {
        given:
        File srcDir = createDir(project.projectDir, 'src')
        createFile(srcDir, 'file.properties')

        and:
        task.from srcDir
        task.into project.buildDir
        task.eachFile(new Action<FileCopyDetails>() {
            void execute(FileCopyDetails fcd) {

        def sourceDir = testDirectory.createDir("source-directory")
        def childDir = sourceDir.createDir("child")
        def childFile = childDir.createFile("child.txt")
        def parentFile = sourceDir.createFile("parent.txt")
        def targetDir = testDirectory.file("target-directory")

        // need an existing sibling of the symlink to ensure the parent directory of
        // the symlink is watched between builds.
        linkdir.file("existing").createFile()
        buildFile << """
    task echo {
        def symlink = file("${symlink.toURI()}")
        inputs.files symlink
        inputs.files "src/linkdir/existing"
        outputs.file "build/outputs"

        binary.sharedLibraryLinkFile == sharedLibraryLinkFile
    }

    def "uses specified link file and library file"() {
        given:
        def sharedLibraryFile = createFile()
        def sharedLibraryLinkFile = createFile()

        when:
        binary.sharedLibraryFile = sharedLibraryFile
        binary.sharedLibraryLinkFile = sharedLibraryLinkFile

        then:

        "file owned by and generated by build"               | false     | true         | true              | { it.createFile() }
        "file owned by but not generated by build"           | true      | true         | false             | { it.createFile() }
        "dir owned by but not generated by build"            | true      | true         | false             | { it.createDir() }

        false
    )

    def doesNotDeleteFilesInsideSymlinkDir() {
        Assume.assumeTrue(canCreateSymbolicLinkToDirectory())

        given:
        def keepTxt = tmpDir.createFile("originalDir", "keep.txt")
        def originalDir = keepTxt.parentFile
        def link = new File(tmpDir.getTestDirectory(), "link")

        when:
        createSymbolicLink(link, originalDir)

        then:

        def watchableHierarchy = file("watchable").createDir()
        def fileOutsideOfWatchableHierarchy = file("outside").file("someFile.txt").createFile()
        def fileInDirectoryIgnoredForWatching = file("cache/some-cache/someFile.txt").createFile()
        ignoredForWatching.add(fileInDirectoryIgnoredForWatching.absolutePath)

        when:
        registerWatchableHierarchies([watchableHierarchy])

    @Rule
    TestNameTestDirectoryProvider tmpDir = new TestNameTestDirectoryProvider(getClass())

    def "can apply ContentAndMetadataAction to file contents"() {
        def file = tmpDir.createFile("content")
        file.text = "1234"

        expect:
        def resource = new LocalFileStandInExternalResource(file, TestFiles.fileSystem())

        setup:
        def file = temporaryFolder.createFile("fsbase/a/a");

        when:
        def fileInStore = uniquePathKeyFileStore.add("a/a", action)

        then:
        fileInStore.file == file
        0 * action.execute(_)
    }

    def "move returns existing file if it already exists"() {
        setup:
        def source = temporaryFolder.createFile("some-file")

        long minimumTimestamp = (System.currentTimeMillis() / 1000 * 1000) - 2000
        def file1 = rootDir.createFile("a/b/1.txt")
        file1 << '12345'
        def file2 = rootDir.createFile("a/b/2.txt")
        file2 << '12345'
        def file3 = rootDir.createFile("a/b/3.txt")
        file3 << '12345'
        def fileTree = new DirectoryFileTree(rootDir, new PatternSet(), TestFiles.fileSystem(), false)