def dir1 = tmpDir.createDir("dir1")
        def dir2 = dir1.createDir("dir2")

        expect:
        def set = from(dir2, dir1)
        set.contains(dir1)
        set.contains(dir2)
        set.contains(dir1.file("child"))
        set.contains(dir2.file("child"))
        !set.contains(dir1.parentFile)
        !set.contains(tmpDir.file("dir"))

        def dir1Child = dir1.file("child")
        dir1Child.createFile()
        def dir2Child = dir2.file("child/some/nested/structure").createFile()
        expect:
        def set = snapshot(dir2, dir1)
        assertDirectorySnapshot(set, dir1)
        assertDirectorySnapshot(set, dir2)
        assertFileSnapshot(set, dir1Child)
        assertFileSnapshot(set, dir2Child)

)

func TestDiskUsage(t *testing.T) {

	dir1, err := os.MkdirTemp("", "dir_1")
	if err != nil {
		t.Fatalf("TestDiskUsage failed: %s", err.Error())
	}
	defer os.RemoveAll(dir1)

	tmpfile1, err := os.CreateTemp(dir1, "test")
	if _, err = tmpfile1.WriteString("just for testing"); err != nil {
		t.Fatalf("TestDiskUsage failed: %s", err.Error())
	}
	dir2, err := os.MkdirTemp(dir1, "dir_2")
	if err != nil {

		fmt.Fprintf(os.Stderr, "  \tand emits text format into file 'out.txt'\n")
	case percentMode:
		fmt.Fprintf(os.Stderr, "  go tool covdata percent -i=dir1,dir2\n\n")
		fmt.Fprintf(os.Stderr, "  \tmerges data from input directories dir1+dir2\n")
		fmt.Fprintf(os.Stderr, "  \tand emits percentage of statements covered\n\n")
	case funcMode:
		fmt.Fprintf(os.Stderr, "  go tool covdata func -i=dir1,dir2\n\n")

    def "can determine a VS2017 version of an install from command line"() {
        def dir1 = tmpDir.createDir("dir1")
        def dir2 = tmpDir.createDir("dir2")
        def dir3 = tmpDir.createDir("dir3")

        given:
        vswhereInstall(dir1, "15.3.26730.16")
        vswhereInstall(dir2, "14.0")
        vswhereInstall(dir3, "12.0")

        when:

        1 * visitor.visitFile({ it.file == tempDir.file("dir2/file2") })
        1 * visitor.visitFile({ it.file == tempDir.file("dir2/file3") })
        1 * visitor.visitDir({ it.file == tempDir.file("dir2/dir1") })
        1 * visitor.visitDir({ it.file == tempDir.file("dir2/dir2") })
        1 * visitor.visitFile({ it.file == tempDir.file("dir2/dir1/file1") })
        1 * visitor.visitFile({ it.file == tempDir.file("dir2/dir1/file2") })

    void addsResolvedSourceDirectory() {
        when:
        set.srcDir 'dir1'

        then:
        set.srcDirs equalTo([new File(testDir, 'dir1')] as Set)
    }

    void addsResolvedSourceDirectories() {
        when:
        set.srcDir {-> ['dir1', 'dir2'] }

        then:
        set.srcDirs equalTo([new File(testDir, 'dir1'), new File(testDir, 'dir2')] as Set)
    }

    void addsContentsOfAnotherSourceDirectorySet() {

        result.component.baseDir == dir1
        def platformSdk = result.component.forPlatform(x64())
        platformSdk.includeDirs == [ dir1.file("Include/${expected}/um"), dir1.file("Include/${expected}/shared") ]
        platformSdk.path == [dir1.file("bin/x64")]
        platformSdk.libDirs == [dir1.file("Lib/${expected}/um/x64")]

        where:

                  include 'extraDir/**'
                  include 'dir1/**'
                  exclude 'dir1/extra.txt'
                }
            }
        '''.stripIndent()

        when:
        run 'sync'

        then:
        file('dest').assertHasDescendants(
            'dir1/file1.txt',
            'dir2/subdir/file2.txt',
            'dir2/file3.txt',
            'extraDir/extra.txt',

    def "can view directory as a file tree"() {
        def dir1 = projectDir.createDir("dir1")
        def file1 = dir1.createFile("sub-dir/file1")
        def file2 = dir1.createFile("file2")
        def dir2 = projectDir.createDir("dir2")
        def file3 = dir2.createFile("other/file3")

        expect:
        def tree1 = layout.projectDirectory.dir("dir1").asFileTree
        tree1.files == [file1, file2] as Set