// fsType is the filesystem type of the volume that you want to mount.
  // Tip: Ensure that the filesystem type is supported by the host operating system.
  // Examples: "ext4", "xfs", "ntfs". Implicitly inferred to be "ext4" if unspecified.
  // More info: https://kubernetes.io/docs/concepts/storage/volumes#awselasticblockstore
  // TODO: how do we prevent errors in the filesystem from compromising the machine
  // +optional

	fs := v1.PersistentVolumeFilesystem
	// The main purpose of reconstructed volume is to clean unused mount points
	// and directories.
	// For filesystem volume with directory source, no global mount path is
	// needed to clean. Empty path is ok.
	// For filesystem volume with block source, we should resolve to its device
	// path if global mount path exists.
	var path string

// +enum
type PersistentVolumeMode string

const (
	// PersistentVolumeBlock means the volume will not be formatted with a filesystem and will remain a raw block device.
	PersistentVolumeBlock PersistentVolumeMode = "Block"
	// PersistentVolumeFilesystem means the volume will be or is formatted with a filesystem.

WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package filesystem

import (
	"math/rand"
	"net"
	"os"
	"sync"
	"testing"
	"time"

	winio "github.com/Microsoft/go-winio"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

	DetachVolume(logger klog.Logger, volumeToDetach AttachedVolume, verifySafeToDetach bool, actualStateOfWorld ActualStateOfWorldAttacherUpdater) error

	// If a volume has 'Filesystem' volumeMode, MountVolume mounts the
	// volume to the pod specified in volumeToMount.
	// Specifically it will:
	// * Wait for the device to finish attaching (for attachable volumes only).

		"tmp/two":   {Data: []byte("2")},
		"tmp/three": {Data: []byte("3")},
	}
	if err := TestFS(fsys, "tmp/one", "tmp/two", "tmp/three"); err != nil {
		t.Error(err)
	}
}

// failPermFS is a filesystem that always fails with fs.ErrPermission.
type failPermFS struct{}

func (f failPermFS) Open(name string) (fs.File, error) {
	if !fs.ValidPath(name) {
		return nil, &fs.PathError{Op: "open", Path: name, Err: fs.ErrInvalid}

  // This is the part that would break the `CreateTmpDir` function because it
  // fails to provide a valid file system.
  absl::Status GetFileSystemForFile(const std::string& fname,
                                    tsl::FileSystem** result) override {
    return absl::InternalError("Broken file system");
  }

 private:
  void GetLocalTempDirectories(std::vector<tsl::string>* list) override {
    list->push_back("/tmp");
  }
};

)

// StatsProvider is an interface for fetching stats used during image garbage
// collection.
type StatsProvider interface {
	// ImageFsStats returns the stats of the image filesystem.
	ImageFsStats(ctx context.Context) (*statsapi.FsStats, *statsapi.FsStats, error)
}

// ImageGCManager is an interface for managing lifecycle of all images.
// Implementation is thread-safe.

func AddKubeadmOtherFlags(flagSet *pflag.FlagSet, rootfsPath *string) {
	flagSet.StringVar(
		rootfsPath, "rootfs", *rootfsPath,
		"The path to the 'real' host root filesystem. This will cause kubeadm to chroot into the provided path.",
	)
}

// AddPatchesFlag adds the --patches flag to the given flagset
func AddPatchesFlag(fs *pflag.FlagSet, patchesDir *string) {

      }
    }

    if (testDir == null) {
      // testdata resources aren't file:// urls, so create a directory to store them in and then
      // copy the resources to the filesystem as needed
      testDir = createTempDir();
    }

    return testDir;
  }

  /** Returns the file with the given name under the testdata directory. */