err = windows.GetVolumeNameForVolumeMountPoint(vol, &buf[0], maxVolNameLen)
	if err != nil {
		t.Fatal(err)
	}
	volName := syscall.UTF16ToString(buf[:])
	testMkdirAllAtRoot(t, volName)
}

func TestRemoveAllLongPathRelative(t *testing.T) {
	// Test that RemoveAll doesn't hang with long relative paths.
	// See go.dev/issue/36375.
	tmp := t.TempDir()
	chdir(t, tmp)