Struct TestBufferManager 

pub struct TestBufferManager { /* private fields */ }

In-memory buffer manager for testing.

Unlike KernelContext::default() which uses a StubBufferManager (returns None for all lookups), this implementation actually stores and retrieves buffers. Use this when tests need real buffer operations.

Implementations

impl TestBufferManager

pub fn new() -> Self

Create a new empty test buffer manager.

Trait Implementations

impl BufferManager for TestBufferManager

fn get(&self, id: BufferId) -> Option<Arc<RwLock<Buffer>>>

Get buffer by ID.

fn create(&self) -> BufferId

Create a new empty buffer.

fn register(&self, buffer: Buffer) -> BufferId

Register an existing buffer (used by drivers after loading).

fn unregister(&self, id: BufferId) -> Result<Buffer, BufferError>

Unregister buffer, returning ownership.

fn list(&self) -> Vec<BufferId>

List all buffer IDs. Order is not guaranteed; callers that need deterministic ordering must sort the result.

fn count(&self) -> usize

Get count of buffers.

impl Default for TestBufferManager

fn default() -> Self

Returns the “default value” for a type.