flatten(s3) == [parent.path, "1:dir1", "2:dir2", "3:dir3", "3:dir4", "2:dir5/and/more", "1:dir6"]

        def s4 = s3.plus(dir1dir2)
        flatten(s4) == [parent.path, "1:dir1", "2:dir2", "2:dir5/and/more", "1:dir6"]

        def s5 = s4.plus(dir1)
        flatten(s5) == [parent.path, "1:dir1", "1:dir6"]

        def s6 = s3.plus(dir1)
        flatten(s6) == [parent.path, "1:dir1", "1:dir6"]

        def s4 = updateDir(s3, dir1dir2)
        flatten(s4) == [parent.path, "1:dir1", "2:dir2", "3:dir3", "3:dir4", "2:dir5/and/more", "1:dir6"]

        def s5 = updateDir(s4, dir1)
        flatten(s5) == [parent.path, "1:dir1", "2:dir2", "3:dir3", "3:dir4", "2:dir5", "3:and", "4:more", "1:dir6"]

        def s6 = updateDir(s3, dir1)

		{name: "rootfile2", size: 10000},
		{name: "dir1/d1file", size: 2000},
		{name: "dir2/d2file", size: 300},
		{name: "dir2/d2file2", size: 300},
		{name: "dir2/d2file3/", size: 300},
		{name: "dir2/d2file4/", size: 300},
		{name: "dir2/d2file5", size: 300},
		{name: "dir1/dira/dafile", size: 100000},
		{name: "dir1/dira/dbfile", size: 200000},
		{name: "dir1/dira/dirasub/dcfile", size: 1000000},

    }

    def "uses windows SDK using specified install dir"() {
        def dir1 = kitDir("sdk1", "10.0.10240.0")
        def dir2 = kitDir("sdk2", "10.0.10150.0")
        def dir3 = kitDir("sdk3", "10.0.10500.0")

        given:

        "parent/"           | "parent/dir1/file1.txt"           | 'dir1/file1.txt'
        "parent/parent.txt" | "parent/dir1/file1.txt"           | 'dir1/file1.txt'
        "parent/"           | "parent/dir1/"                    | 'dir1'
        "parent/dir1/"      | "parent/dir1/dir2/file2.txt"      | 'dir2/file2.txt'
        "parent/dir1/"      | "parent/dir1/dir2/dir3/file3.txt" | 'dir2/dir3/file3.txt'
    }

        System.setProperty("gradle.user.home", "dir1")

        def parameters1 = convert([])
        def parameters2 = convert(["-Dgradle.user.home=dir2"])
        def parameters3 = convert(["--gradle-user-home", "dir3", "-Dgradle.user.home=dir2"])

        then:
        parameters1.gradleUserHomeDir == dir1
        parameters2.gradleUserHomeDir == dir2
        parameters3.gradleUserHomeDir == dir3

        def dir1 = vsDir("vs1")
        def dir2 = vsDir("vs2")
        def dir3 = vsDir("vs3")
        def dir4 = vs2017Dir("vs4")

        given:
        1 * commandLineLocator.getVisualStudioInstalls() >> { [vs2017Install(dir4, "15.0"), legacyVsInstall(dir1, "11.0"), legacyVsInstall(dir2, "12.0"), legacyVsInstall(dir3, "13.0")] }

    def "executable is unavailable when not found in path"() {
        def visitor = Mock(DiagnosticsVisitor)
        def dir1 = tmpDir.createDir("some-dir")
        def dir2 = tmpDir.createDir("some-dir-2")

        given:
        os.getExecutableName("cc") >> "cc.bin"
        registry.setPath([dir1, dir2])

        when:
        def result = registry.locate(ToolType.C_COMPILER, "cc")

        then:

            sourceDirs.srcDirs("dir1", "dir2")
            fileCollection.from(sourceDirs.srcDirTrees)
            println("files = \${fileCollection.files.name.sort()}")
        """

        given:
        file("dir1/file1").createFile()
        file("dir1/file2").createFile()
        file("dir2/sub/file3").createFile()

        expect:
        succeeds()

        1 * windowsRegistry.getStringValue(_, foundIn, "12.0") >> dir2.createDir("VC").absolutePath
        1 * windowsRegistry.getStringValue(_, foundIn, "11.0") >> dir3.createDir("VC").absolutePath

        and:
        metadata.size() == 3
        metadata[0].installDir == dir1
        metadata[0].visualCppDir == new File(dir1, "VC")