Struct VirtualFilesystem 

pub struct VirtualFilesystem { /* private fields */ }

An in-memory virtual filesystem for use in tests and sandboxed execution.

Implementations

impl VirtualFilesystem

pub fn new() -> Self

Create an empty virtual filesystem.

pub fn set_read_only(&mut self, ro: bool)

Mark the filesystem as read-only.

pub fn mkdir(&mut self, path: &str) -> bool

Create a directory.

pub fn write_file(&mut self, path: &str, contents: &[u8]) -> Result<(), IoError>

Write a file.

pub fn read_file(&self, path: &str) -> Result<Vec<u8>, IoError>

Read a file.

pub fn delete_file(&mut self, path: &str) -> bool

Delete a file.

pub fn file_exists(&self, path: &str) -> bool

Check whether a file exists.

pub fn dir_exists(&self, path: &str) -> bool

Check whether a directory exists.

pub fn list_dir(&self, dir: &str) -> Vec<String>

List files in a directory (shallow).

pub fn file_size(&self, path: &str) -> Option<usize>

File size.

pub fn append_file( &mut self, path: &str, contents: &[u8], ) -> Result<(), IoError>

Append to a file (creating it if it doesn’t exist).

pub fn copy_file(&mut self, src: &str, dst: &str) -> Result<(), IoError>

Copy a file.

pub fn rename_file(&mut self, src: &str, dst: &str) -> Result<(), IoError>

Rename a file.

pub fn file_count(&self) -> usize

Total number of files.

pub fn total_bytes(&self) -> usize

Total bytes stored.

Trait Implementations

impl Default for VirtualFilesystem

fn default() -> Self

Returns the “default value” for a type.