Struct MockFileSystem 

pub struct MockFileSystem { /* private fields */ }

Mock file system for testing.

Provides an in-memory HashMap-based storage with RwLock for thread safety. This enables unit testing validators without requiring real temp files.

Implementations

impl MockFileSystem

pub const MAX_SYMLINK_DEPTH: u32 = 40

Maximum depth for symlink resolution to prevent infinite loops.

This matches the typical OS limit (Linux ELOOP is triggered at 40 levels). Value chosen to match POSIX SYMLOOP_MAX and Linux’s internal limit. See: https://man7.org/linux/man-pages/man3/fpathconf.3.html

pub fn new() -> Self

Create a new empty mock file system

pub fn add_file(&self, path: impl AsRef<Path>, content: impl Into<String>)

Add a file with the given content

pub fn add_dir(&self, path: impl AsRef<Path>)

Add a directory

pub fn add_symlink(&self, path: impl AsRef<Path>, target: impl AsRef<Path>)

Add a symlink pointing to target

pub fn remove(&self, path: impl AsRef<Path>)

Remove an entry

pub fn clear(&self)

Clear all entries

Trait Implementations

impl Debug for MockFileSystem

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for MockFileSystem

fn default() -> MockFileSystem

Returns the “default value” for a type.

impl FileSystem for MockFileSystem

fn exists(&self, path: &Path) -> bool

Check if a path exists

fn is_file(&self, path: &Path) -> bool

Check if a path is a file

fn is_dir(&self, path: &Path) -> bool

Check if a path is a directory

fn is_symlink(&self, path: &Path) -> bool

Check if a path is a symlink

fn metadata(&self, path: &Path) -> Result<FileMetadata>

Get metadata for a path (follows symlinks)

fn symlink_metadata(&self, path: &Path) -> Result<FileMetadata>

Get metadata for a path without following symlinks

fn read_to_string(&self, path: &Path) -> LintResult<String>

Read file contents to string (with security checks)

fn write(&self, path: &Path, content: &str) -> LintResult<()>

Write content to file (with security checks)

fn canonicalize(&self, path: &Path) -> Result<PathBuf>

Canonicalize a path

fn read_dir(&self, path: &Path) -> Result<Vec<DirEntry>>

Read directory contents