Struct virtual_filesystem::MockFileSystem

pub struct MockFileSystem { /* private fields */ }

A file system with a directory tree.

Implementations

impl MockFileSystem

pub fn checkpoint(&mut self)

Validate that all current expectations for all methods have been satisfied, and discard them.

pub fn new() -> Self

Create a new mock object with no expectations.

This method will not be generated if the real struct already has a new method. However, it will be generated if the struct implements a trait with a new method. The trait’s new method can still be called like <MockX as TraitY>::new

impl MockFileSystem

pub fn expect_create_dir(&mut self) -> &mut Expectation

Create an Expectation for mocking the create_dir method

pub fn expect_metadata(&mut self) -> &mut Expectation

Create an Expectation for mocking the metadata method

pub fn expect_open_file_options(&mut self) -> &mut Expectation

Create an Expectation for mocking the open_file_options method

pub fn expect_read_dir(&mut self) -> &mut Expectation

Create an Expectation for mocking the read_dir method

pub fn expect_remove_dir(&mut self) -> &mut Expectation

Create an Expectation for mocking the remove_dir method

pub fn expect_remove_file(&mut self) -> &mut Expectation

Create an Expectation for mocking the remove_file method

pub fn expect_create_dir_all(&mut self) -> &mut Expectation

Create an Expectation for mocking the create_dir_all method

pub fn expect_create_file(&mut self) -> &mut Expectation

Create an Expectation for mocking the create_file method

pub fn expect_exists(&mut self) -> &mut Expectation

Create an Expectation for mocking the exists method

pub fn expect_open_file(&mut self) -> &mut Expectation

Create an Expectation for mocking the open_file method

Trait Implementations

impl Debug for MockFileSystem

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

Formats the value using the given formatter.

impl Default for MockFileSystem

fn default() -> Self

Returns the “default value” for a type.

impl FileSystem for MockFileSystem

A file system with a directory tree.

fn create_dir(&self, path: &str) -> Result<()>

Creates a directory at path.

fn metadata(&self, path: &str) -> Result<Metadata>

Returns the metadata for the file/folder at `path.

fn open_file_options( &self, path: &str, options: &OpenOptions ) -> Result<Box<dyn File>>

Opens a file at path with options options.

fn read_dir( &self, path: &str ) -> Result<Box<dyn Iterator<Item = Result<DirEntry>>>>

Lists the files and folders contained in the directory denoted by path.

fn remove_dir(&self, path: &str) -> Result<()>

Removes the directory at path.

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

Removes a file at path.

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

Creates a directory path and all of its parents.

fn create_file(&self, path: &str) -> Result<Box<dyn File>>

Creates a file at path in write mode. The file will be opened in truncate mode, so all contents will be overwritten. If this is not desirable, use open_file directly.

fn exists(&self, path: &str) -> Result<bool>

Returns Ok(true) or Ok(false) if a file or folder at path does or does not exist, and Err(_) if the presence cannot be verified.

fn open_file(&self, path: &str) -> Result<Box<dyn File>>

Opens a file at path for reading.