then:
        file("transitive/build/jacoco/test.exec").assertExists()
        file("transitive/build/jacoco/integTest.exec").assertExists()
        file("direct/build/jacoco/test.exec").assertExists()
        file("direct/build/jacoco/integTest.exec").assertDoesNotExist()
        file("application/build/jacoco/test.exec").assertExists()
        file("application/build/jacoco/integTest.exec").assertExists()

        run()

        then:
        outputContains("src file 1: " + testDirectory.file("src/child"))
        outputContains("output file 1: " + testDirectory.file("build/child"))
        outputContains("src file 2: " + testDirectory.file("src/other-child"))
        outputContains("output file 2: " + testDirectory.file("output/some-dir/other-child"))
    }

        jvm.jdk
        jvm.toolsJar == software.file('jdk/lib/tools.jar')
        jvm.javaExecutable == software.file('jdk/bin/java.exe')
        jvm.javacExecutable == software.file('jdk/bin/javac.exe')
        jvm.javadocExecutable == software.file('jdk/bin/javadoc.exe')
        jvm.jre == software.file('jdk/jre')
        jvm.embeddedJre == software.file("jdk/jre")
        jvm.standaloneJre == null

        File included1 = new File(testDir, 'subDir/included1')
        File included2 = new File(testDir, 'subDir2/included2')
        File excluded1 = new File(testDir, 'subDir/notincluded')
        File ignored1 = new File(testDir, 'ignored')
        [included1, included2, excluded1, ignored1].each { File file ->
            file.parentFile.mkdirs()
            file.text = 'some text'
        }

        file("input.txt").createNewFile()
        file("input-nested.txt").createNewFile()
        file("input1.txt").createNewFile()
        file("input2.txt").createNewFile()
        file("inputs").createDir()
        file("inputs/inputA.txt").createNewFile()
        file("inputs/inputB.txt").createNewFile()
        file("inputs1").createDir()
        file("inputs2").createDir()

        buildFile """

                content = "a"
            }
            tasks.register("c", InputFileTask) {
                inFile = taskA.output.orElse(file("b.txt"))
                outFile = file("out.txt")
            }
        """

        when:
        run("c")

        then:
        result.assertTasksExecuted(":a", ":c")
        file("out.txt").text == "a"
    }

  }

  private static File fullpath(String path) {
    return new File(new File(path).toURI());
  }

  private static URL makeJarUrlWithName(String name) throws IOException {
    /*
     * TODO: cpovirk - Use java.nio.file.Files.createTempDirectory instead of
     * c.g.c.io.Files.createTempDir?
     */
    File fullPath = new File(Files.createTempDir(), name);
    File jarFile = pickAnyJarFile();

    }

    def "removes content on unsupported file systems at the end of the build"() {
        def watchableHierarchy = file("watchable").createDir()
        def watchableContent = watchableHierarchy.file("some/dir/file.txt").createFile()
        def unsupportedFileSystemMountPoint = watchableHierarchy.file("unsupported")
        def unwatchableContent = unsupportedFileSystemMountPoint.file("some/file.txt").createFile()

        when:

            ProcessGroovyMethodsExecute.execute(["some", "string"])
            ProcessGroovyMethodsExecute.execute(["some", "string"], ["array"] as String[], file("test"))
            ProcessGroovyMethodsExecute.execute(["some", "string"], ["array"], file("test"))

            execute("some string")
            execute("some string", ["array"] as String[], file("test"))
            execute("some string", ["array"], file("test"))

     * @param file to read
     * @return content of the file or the problem description in case file cannot be read.
     */
    public static String readFileQuietly(File file) {
        try {
            return readFile(file);
        } catch (Exception e) {
            return "Unable to read file '" + file + "' due to: " + e.toString();
        }
    }

    public static void writeFile(String content, File destination) {