Publish harness and TUI open-source

initial sync from the monorepo

crates/codegen/xai-grok-shell/tests/test_doomloop_capture.rs

@@ -0,0 +1,96 @@
+//! Mock-HTTP integration test for reasoning-only detection on the Responses
+//! API wire — the trigger that drives the model doomloop.
+//!
+//! Spawns a `MockInferenceServer` that serves a `/v1/responses` SSE stream
+//! carrying only reasoning (reasoning summary deltas, no output text, no tool
+//! call) and asserts the shell sampling client classifies the collected
+//! response as `EmptyReason::ReasoningOnly`. This is the exact check the
+//! sampler's retry loop runs on every completed turn to decide to resample
+//! (and accumulate the out-of-band streaming-capture segments verified by the
+//! actor-level capture test).
+
+mod common;
+
+use common::create_test_client;
+use xai_grok_sampling_types::EmptyReason;
+use xai_grok_shell::sampling::{ApiBackend, ConversationItem, ConversationRequest};
+use xai_grok_test_support::sse::responses_api_reasoning_only_events;
+use xai_grok_test_support::{MockInferenceServer, ScriptedResponse};
+
+/// A `/v1/responses` stream that streams only reasoning and finishes with no
+/// visible content must be collected into a response the client classifies as
+/// `EmptyReason::ReasoningOnly` — the detection that makes the shell resample
+/// and spin the doomloop. Exercises the real SSE/HTTP path
+/// (`conversation_collect` -> `stream_responses` -> `collect_response`).
+#[tokio::test]
+async fn responses_api_reasoning_only_is_classified_as_reasoning_only() {
+    let server = MockInferenceServer::start().await.unwrap();
+    server.enqueue_response(
+        "/v1/responses",
+        ScriptedResponse::sse(responses_api_reasoning_only_events(
+            "let me think carefully about this",
+            "grok-test",
+        )),
+    );
+    let client = create_test_client(&server.url(), ApiBackend::Responses);
+
+    let request = ConversationRequest::from_items(vec![ConversationItem::user(
+        "Solve this without writing anything",
+    )]);
+
+    // The stream completes normally — it is just empty — so collect succeeds.
+    let response = client
+        .conversation_collect(request)
+        .await
+        .expect("collect must succeed: the stream completes, the response is empty");
+
+    assert_eq!(
+        response.empty_reason(),
+        Some(EmptyReason::ReasoningOnly),
+        "a reasoning-only Responses stream must classify as reasoning_only",
+    );
+    assert!(response.is_empty());
+    // The reasoning sibling survived; the assistant is present but empty.
+    assert!(
+        response.reasoning_items().next().is_some(),
+        "the reasoning item must be collected as a sibling",
+    );
+    let assistant = response
+        .assistant()
+        .expect("an empty assistant is synthesized for the turn");
+    assert!(
+        assistant.content.is_empty(),
+        "reasoning-only means the assistant carried no visible content",
+    );
+}
+
+/// Negative control for the classifier: a normal text `/v1/responses` stream
+/// carrying visible assistant content must NOT be classified empty —
+/// `empty_reason()` is `None`, distinguishing real content from the
+/// reasoning-only case above. (No recovery/resample loop is exercised here.)
+#[tokio::test]
+async fn normal_text_response_is_not_classified_reasoning_only() {
+    let server = MockInferenceServer::start().await.unwrap();
+    server.set_response("The answer is 42.");
+    let client = create_test_client(&server.url(), ApiBackend::Responses);
+
+    let response = client
+        .conversation_collect(ConversationRequest::from_items(vec![
+            ConversationItem::user("What is the answer?"),
+        ]))
+        .await
+        .unwrap();
+
+    assert!(
+        response.empty_reason().is_none(),
+        "a normal text turn must not be classified empty",
+    );
+    let assistant = response
+        .assistant()
+        .expect("assistant present on a text turn");
+    assert!(
+        assistant.content.contains("42"),
+        "the text turn must carry the model's content, got: {:?}",
+        assistant.content,
+    );
+}