tzt
f7e8273434
- SessionStore.fork(sid, turn_index, title)：值拷贝 turns[:n+1] 生成新会话，
原会话不变；新会话记录 parent_id/fork_point（pi 的 id/parentId 树思想）；
拷贝式而非共享存储引用——规避并发写冲突，会话体量小冗余可接受
- 旧会话数据无血统字段自然兼容（dict.get 语义，零迁移，对齐 pi 的版本迁移纪律）
- 新增 POST /agent/sessions/{sid}/fork 端点（404 = 会话不存在/分叉点越界）
- 新增 tests/test_session_fork.py 6 项（拷贝正确性/缺省语义/越界/深拷贝/
旧数据兼容/端点 200+404）
99 lines
3.7 KiB
Python
99 lines
3.7 KiB
Python
"""会话树 fork 单元与端点测试（T-M1，采纳 pi 会话树 id/parentId 设计）。"""
|
|
import pytest
|
|
|
|
pytest.importorskip("fastapi")
|
|
pytest.importorskip("httpx")
|
|
|
|
from fastapi.testclient import TestClient
|
|
|
|
import gateway.agent as ag
|
|
import gateway.api as ga
|
|
from gateway.agent import AgentSession, SessionStore
|
|
|
|
|
|
def _mk_turn(rid: str, task: str) -> dict:
|
|
return {"request_id": rid, "task": task, "response": f"ans-{rid}",
|
|
"state": "done", "tool_calls": [], "tokens": 10,
|
|
"error": None, "ts": 0.0}
|
|
|
|
|
|
def test_fork_copies_turns_and_keeps_lineage(tmp_path):
|
|
"""值拷贝历史轮次 + 记录 parent_id/fork_point 血统。"""
|
|
store = SessionStore(root=tmp_path / "sessions")
|
|
src = store.create("源会话", "ws")
|
|
src.data["turns"] = [_mk_turn("t1", "任务一"), _mk_turn("t2", "任务二")]
|
|
store.save(src)
|
|
|
|
forked = store.fork(src.data["id"], turn_index=0, title="分叉A")
|
|
assert forked is not None
|
|
assert forked.data["id"] != src.data["id"]
|
|
assert forked.data["parent_id"] == src.data["id"]
|
|
assert forked.data["fork_point"] == 0
|
|
assert [t["request_id"] for t in forked.data["turns"]] == ["t1"]
|
|
# 原会话不变
|
|
assert len(store.get(src.data["id"]).data["turns"]) == 2
|
|
|
|
|
|
def test_fork_default_takes_all_turns(tmp_path):
|
|
"""缺省 turn_index = 全部已完结轮次。"""
|
|
store = SessionStore(root=tmp_path / "sessions")
|
|
src = store.create("源", "ws")
|
|
src.data["turns"] = [_mk_turn("t1", "a"), _mk_turn("t2", "b")]
|
|
store.save(src)
|
|
forked = store.fork(src.data["id"])
|
|
assert len(forked.data["turns"]) == 2
|
|
assert forked.data["fork_point"] == 1
|
|
|
|
|
|
def test_fork_out_of_range_returns_none(tmp_path):
|
|
"""turn_index 越界 / 源会话不存在 -> None（端点映射 404）。"""
|
|
store = SessionStore(root=tmp_path / "sessions")
|
|
src = store.create("源", "ws")
|
|
src.data["turns"] = [_mk_turn("t1", "a")]
|
|
store.save(src)
|
|
assert store.fork(src.data["id"], turn_index=5) is None
|
|
assert store.fork(src.data["id"], turn_index=-2) is None
|
|
assert store.fork("as-not-exist") is None
|
|
|
|
|
|
def test_fork_is_deep_copy(tmp_path):
|
|
"""fork 后修改新会话不影响原会话（值拷贝语义）。"""
|
|
store = SessionStore(root=tmp_path / "sessions")
|
|
src = store.create("源", "ws")
|
|
src.data["turns"] = [_mk_turn("t1", "a")]
|
|
store.save(src)
|
|
forked = store.fork(src.data["id"])
|
|
forked.data["turns"][0]["task"] = "被篡改"
|
|
forked.data["turns"].append(_mk_turn("t2", "新轮"))
|
|
assert store.get(src.data["id"]).data["turns"][0]["task"] == "a"
|
|
assert len(store.get(src.data["id"]).data["turns"]) == 1
|
|
|
|
|
|
def test_old_sessions_without_lineage_fields_compatible(tmp_path):
|
|
"""旧数据无 parent_id/fork_point 字段自然兼容（dict.get 语义，零迁移）。"""
|
|
store = SessionStore(root=tmp_path / "sessions")
|
|
sess = AgentSession({"id": "as-legacy", "title": "旧", "turns": []})
|
|
store.save(sess)
|
|
assert store.get("as-legacy").data.get("parent_id", "") == ""
|
|
|
|
|
|
def test_fork_endpoint(tmp_path, monkeypatch):
|
|
"""POST /agent/sessions/{sid}/fork：端到端 200 + 404。"""
|
|
ag.reset_session_store()
|
|
monkeypatch.setattr(ag, "_session_store", SessionStore(root=tmp_path / "sessions"))
|
|
store = ag._session_store
|
|
src = store.create("源", "ws")
|
|
src.data["turns"] = [_mk_turn("t1", "a")]
|
|
store.save(src)
|
|
|
|
client = TestClient(ga.app)
|
|
r = client.post(f"/agent/sessions/{src.data['id']}/fork",
|
|
json={"turn_index": 0, "title": "端点分叉"})
|
|
assert r.status_code == 200
|
|
data = r.json()
|
|
assert data["parent_id"] == src.data["id"]
|
|
assert data["title"] == "端点分叉"
|
|
|
|
r404 = client.post("/agent/sessions/as-not-exist/fork", json={})
|
|
assert r404.status_code == 404
|