mobius 0.10.0

A small, modular Rust framework for building coding agents
Documentation 
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use super::super::*;

#[tokio::test]
async fn metadata_only_event_does_not_count_as_sink_delivery() {
    let (sender, mut messages) = mpsc::unbounded_channel();
    sender
        .send(SocketEvent::Message(Message::text(
            serde_json::json!({
                "type": "response.output_item.added",
                "item": {
                    "id": "commentary-1",
                    "type": "message",
                    "phase": "commentary"
                }
            })
            .to_string(),
        )))
        .expect("metadata event");
    drop(sender);
    let delivered = Arc::new(std::sync::atomic::AtomicUsize::new(0));
    let sink_delivered = Arc::clone(&delivered);
    let events: ModelEventSink = Arc::new(move |_| {
        sink_delivered.fetch_add(1, Ordering::Relaxed);
        Ok(())
    });

    let exchange = read_exchange(&mut messages, &events)
        .await
        .expect("exchange result");

    assert!(matches!(exchange, Exchange::Reconnect));
    assert_eq!(delivered.load(Ordering::Relaxed), 0);
}

#[tokio::test]
async fn visible_delta_before_eof_is_still_a_retryable_stream_failure() {
    let (sender, mut messages) = mpsc::unbounded_channel();
    sender
        .send(SocketEvent::Message(Message::text(
            serde_json::json!({
                "type": "response.output_text.delta",
                "delta": "partial"
            })
            .to_string(),
        )))
        .expect("text delta");
    drop(sender);
    let delivered = Arc::new(std::sync::atomic::AtomicUsize::new(0));
    let sink_delivered = Arc::clone(&delivered);
    let events: ModelEventSink = Arc::new(move |_| {
        sink_delivered.fetch_add(1, Ordering::Relaxed);
        Ok(())
    });

    let exchange = read_exchange(&mut messages, &events)
        .await
        .expect("exchange result");

    assert!(matches!(exchange, Exchange::Reconnect));
    assert_eq!(delivered.load(Ordering::Relaxed), 1);
}

#[tokio::test]
async fn server_close_before_completion_is_retryable() {
    let (sender, mut messages) = mpsc::unbounded_channel();
    sender.send(SocketEvent::Closed).expect("server close");
    let events: ModelEventSink = Arc::new(|_| Ok(()));

    let exchange = read_exchange(&mut messages, &events)
        .await
        .expect("exchange result");

    assert!(matches!(exchange, Exchange::Reconnect));
}

#[tokio::test]
async fn completed_tool_call_before_eof_is_not_returned() {
    let (sender, mut messages) = mpsc::unbounded_channel();
    sender
        .send(SocketEvent::Message(Message::text(
            serde_json::json!({
                "type": "response.output_item.done",
                "output_index": 0,
                "item": {
                    "type": "function_call",
                    "id": "item-1",
                    "call_id": "call-1",
                    "name": "dangerous_tool",
                    "arguments": "{}"
                }
            })
            .to_string(),
        )))
        .expect("tool call item");
    drop(sender);
    let delivered = Arc::new(std::sync::atomic::AtomicUsize::new(0));
    let sink_delivered = Arc::clone(&delivered);
    let events: ModelEventSink = Arc::new(move |_| {
        sink_delivered.fetch_add(1, Ordering::Relaxed);
        Ok(())
    });

    let exchange = read_exchange(&mut messages, &events)
        .await
        .expect("exchange result");

    assert!(matches!(exchange, Exchange::Reconnect));
    assert_eq!(delivered.load(Ordering::Relaxed), 0);
}

#[tokio::test(start_paused = true)]
async fn stream_idle_timeout_is_retryable() {
    let (_sender, mut messages) = mpsc::unbounded_channel();
    let events: ModelEventSink = Arc::new(|_| Ok(()));
    let exchange = tokio::spawn(async move { read_exchange(&mut messages, &events).await });
    tokio::task::yield_now().await;

    tokio::time::advance(STREAM_IDLE_TIMEOUT).await;
    let exchange = exchange
        .await
        .expect("exchange task")
        .expect("exchange result");

    assert!(matches!(exchange, Exchange::Reconnect));
}