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| 1 | +"""Tests for the runtime-owned conversational fast path.""" |
| 2 | + |
| 3 | +from __future__ import annotations |
| 4 | + |
| 5 | +from pathlib import Path |
| 6 | + |
| 7 | +import pytest |
| 8 | + |
| 9 | +from loader.agent.loop import Agent, AgentConfig |
| 10 | +from loader.llm.base import StreamChunk |
| 11 | +from loader.runtime.chat_lane import CHAT_SYSTEM_PROMPT, ConversationalTurnRunner |
| 12 | +from loader.runtime.launcher import build_runtime_launcher |
| 13 | +from tests.helpers.runtime_harness import ScriptedBackend |
| 14 | + |
| 15 | + |
| 16 | +@pytest.mark.asyncio |
| 17 | +async def test_conversational_turn_runner_streams_and_persists_history( |
| 18 | + temp_dir: Path, |
| 19 | +) -> None: |
| 20 | + agent = Agent( |
| 21 | + backend=ScriptedBackend( |
| 22 | + streams=[ |
| 23 | + [ |
| 24 | + StreamChunk(content="Hello ", is_done=False), |
| 25 | + StreamChunk( |
| 26 | + content="back.", |
| 27 | + full_content="Hello back.", |
| 28 | + is_done=True, |
| 29 | + ), |
| 30 | + ] |
| 31 | + ] |
| 32 | + ), |
| 33 | + config=AgentConfig(auto_context=False), |
| 34 | + project_root=temp_dir, |
| 35 | + ) |
| 36 | + runner = ConversationalTurnRunner(agent) |
| 37 | + events = [] |
| 38 | + |
| 39 | + async def emit(event) -> None: |
| 40 | + events.append(event) |
| 41 | + |
| 42 | + response = await runner.run("hello there", emit) |
| 43 | + |
| 44 | + assert response == "Hello back." |
| 45 | + assert [event.type for event in events] == ["thinking", "stream", "stream", "response"] |
| 46 | + assert agent.session.messages[-2].content == "hello there" |
| 47 | + assert agent.session.messages[-1].content == "Hello back." |
| 48 | + assert agent.backend.invocations[0].messages[0].content == CHAT_SYSTEM_PROMPT |
| 49 | + |
| 50 | + |
| 51 | +@pytest.mark.asyncio |
| 52 | +async def test_runtime_launcher_runs_conversational_fast_path( |
| 53 | + temp_dir: Path, |
| 54 | +) -> None: |
| 55 | + agent = Agent( |
| 56 | + backend=ScriptedBackend( |
| 57 | + streams=[ |
| 58 | + [ |
| 59 | + StreamChunk(content="Quick ", is_done=False), |
| 60 | + StreamChunk( |
| 61 | + content="reply.", |
| 62 | + full_content="Quick reply.", |
| 63 | + is_done=True, |
| 64 | + ), |
| 65 | + ] |
| 66 | + ] |
| 67 | + ), |
| 68 | + config=AgentConfig(auto_context=False), |
| 69 | + project_root=temp_dir, |
| 70 | + ) |
| 71 | + launcher = build_runtime_launcher(agent) |
| 72 | + events = [] |
| 73 | + |
| 74 | + async def emit(event) -> None: |
| 75 | + events.append(event) |
| 76 | + |
| 77 | + response = await launcher.run_conversational("thanks", emit) |
| 78 | + |
| 79 | + assert response == "Quick reply." |
| 80 | + assert any(event.type == "response" and event.content == "Quick reply." for event in events) |
