Struct MockFs 

pub struct MockFs { /* private fields */ }

In-memory filesystem for testing.

Example

use xerv_core::testing::{MockFs, FsProvider};
use std::path::Path;

let fs = MockFs::new()
    .with_file("/config/app.yaml", b"name: test")
    .with_file("/data/input.json", b"{}");

assert!(fs.exists(Path::new("/config/app.yaml")));
assert_eq!(fs.read(Path::new("/config/app.yaml")).unwrap(), b"name: test");

Implementations

impl MockFs

pub fn new() -> Self

Create a new empty mock filesystem.

pub fn with_file( self, path: impl AsRef<Path>, contents: impl AsRef<[u8]>, ) -> Self

Add a file to the mock filesystem.

pub fn with_text_file(self, path: impl AsRef<Path>, contents: &str) -> Self

Add a file with string contents.

pub fn with_dir(self, path: impl AsRef<Path>) -> Self

Add a directory to the mock filesystem.

pub fn all_files(&self) -> Vec<PathBuf>

Get all files in the mock filesystem.

pub fn all_dirs(&self) -> Vec<PathBuf>

Get all directories in the mock filesystem.

pub fn clear(&self)

Clear the mock filesystem.

Trait Implementations

impl Default for MockFs

fn default() -> Self

Returns the “default value” for a type.

impl FsProvider for MockFs

fn read(&self, path: &Path) -> Result<Vec<u8>>

Read file contents.

fn write(&self, path: &Path, contents: &[u8]) -> Result<()>

Write file contents.

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 create_dir_all(&self, path: &Path) -> Result<()>

Create a directory and all parent directories.

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

Remove a file.

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

Remove a directory and all its contents.

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

List directory contents.

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

Get file metadata.

fn is_mock(&self) -> bool

Check if this is a mock provider.