Summarize progress counts reasoning tokens: thinking models stream most of the run in reasoning_content, which the ticker ignored — UI sat at 'waiting for model' then jumped to done with no percentage

backend/tests/test_ai_adapters.py

@@ -155,6 +155,34 @@ async def test_openai_compat_streams_with_progress():
     assert all(0 <= p <= 99 for p in seen_pcts)  # never claims 100 early
 
 
+async def test_openai_compat_thinking_moves_progress_before_content():
+    """qwen3-on-llama.cpp streams reasoning_content for most of the run;
+    progress must climb during that phase, not sit at "waiting for model"
+    and then jump straight to done."""
+    import json as _json
+
+    def sse(request: httpx.Request) -> httpx.Response:
+        think = [f"reasoning chunk {i} " for i in range(40)]  # ~800 chars
+        lines = [f"data: {_json.dumps({'choices': [{'delta': {'reasoning_content': p}}]})}"
+                 for p in think]
+        answer = _json.dumps({"short": "Done.", "key_points": []})
+        lines.append(f"data: {_json.dumps({'choices': [{'delta': {'content': answer}}]})}")
+        lines.append("data: [DONE]")
+        return httpx.Response(
+            200, content=("\n\n".join(lines) + "\n\n").encode(),
+            headers={"content-type": "text/event-stream"})
+
+    p = OpenAICompatProvider("http://llm:8000", model="qwen",
+                             http_client=mock_client(sse))
+    seen_pcts = []
+    res = await p.summarize("t", on_progress=seen_pcts.append)
+    assert res.short == "Done."  # reasoning never enters the reply
+    # The ticker must report real mid-run values while only reasoning
+    # streamed — otherwise the UI shows no percentage for the whole job.
+    assert len(seen_pcts) > 10
+    assert seen_pcts[-1] > 50
+
+
 async def test_openai_compat_partial_json_gets_defaults():
     import json as _json