Struct MockStorage

pub struct MockStorage { /* private fields */ }

Implementations

impl MockStorage

pub fn new() -> Self

pub fn all(&mut self, iterator_id: u32) -> BackendResult<Vec<Record>>

Trait Implementations

impl Debug for MockStorage

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

Formats the value using the given formatter.

impl Default for MockStorage

fn default() -> MockStorage

Returns the “default value” for a type.

impl Storage for MockStorage

fn get(&self, key: &[u8]) -> BackendResult<Option<Vec<u8>>>

Returns Err on error. Returns Ok(None) when key does not exist. Returns Ok(Some(Vec)) when key exists.

fn scan( &mut self, start: Option<&[u8]>, end: Option<&[u8]>, order: Order, ) -> BackendResult<u32>

Allows iteration over a set of key/value pairs, either forwards or backwards. Returns an iterator ID that is unique within the Storage instance.

fn next(&mut self, iterator_id: u32) -> BackendResult<Option<Record>>

Returns the next element of the iterator with the given ID.

fn set(&mut self, key: &[u8], value: &[u8]) -> BackendResult<()>

fn remove(&mut self, key: &[u8]) -> BackendResult<()>

Removes a database entry at key.

fn next_value(&mut self, iterator_id: u32) -> BackendResult<Option<Vec<u8>>>

Returns the next value of the iterator with the given ID. Since the iterator is incremented, the corresponding key will never be accessible.

fn next_key(&mut self, iterator_id: u32) -> BackendResult<Option<Vec<u8>>>

Returns the next key of the iterator with the given ID. Since the iterator is incremented, the corresponding value will never be accessible.