Struct EventReceiver 

pub struct EventReceiver { /* private fields */ }

The read end of a run’s event stream.

Yielded by RunContext::new for agents under test. Transports get a [Stream] from Runner::run instead.

Implementations

impl EventReceiver

pub fn drain(&mut self) -> Vec<Event>

Takes every event emitted so far without waiting.

The emit path is synchronous, so after calling an agent’s code everything it emitted is already queued. That makes this the whole assertion story for a unit test:

let (mut ctx, mut events) = RunContext::<()>::new(RunAgentInput::new("t", "r"))?;
ctx.say("hello")?;
assert_eq!(events.drain(), vec![
    Event::text_message_start("r-msg-1", TextMessageRole::Assistant),
    Event::text_message_content("r-msg-1", "hello"),
    Event::text_message_end("r-msg-1"),
]);

pub fn close(&mut self)

Closes the channel, so the next emit fails with Error::Disconnected.

Trait Implementations

impl Debug for EventReceiver

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

Formats the value using the given formatter.

impl Stream for EventReceiver

type Item = Event

Values yielded by the stream.

fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Event>>

Attempt to pull out the next value of this stream, registering the current task for wakeup if the value is not yet available, and returning None if the stream is exhausted.

fn size_hint(&self) -> (usize, Option<usize>)

Returns the bounds on the remaining length of the stream.