Struct CapturingLogSink 

pub struct CapturingLogSink { /* private fields */ }

Test-only HostLogSink that captures every emitted message in a Mutex<Vec<String>>. Tests inspect the captured messages to verify log bounds, content, and deduplication without touching stderr.

Implementations

impl CapturingLogSink

pub fn new() -> Self

Create an empty capturing sink.

pub fn messages(&self) -> Vec<String>

Return a snapshot of all captured messages in emission order.

pub fn total_bytes(&self) -> usize

Total byte length of all captured messages. Useful for asserting that a 16 KiB guest error did not produce a 16 KiB log.

pub fn clear(&self)

Drop all captured messages.

Trait Implementations

impl Debug for CapturingLogSink

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

Formats the value using the given formatter.

impl Default for CapturingLogSink

fn default() -> CapturingLogSink

Returns the “default value” for a type.

impl HostLogSink for CapturingLogSink

fn emit(&self, message: &str)

Emit a single log line. The implementation decides where it goes.