v2.0 补充单元测试，行覆盖90以上

src/mvp/py/tests/conftest.py

@@ -0,0 +1,77 @@
+from __future__ import annotations
+
+import os
+import sys
+import types
+from pathlib import Path
+
+
+def _ensure_mvp_py_on_path() -> None:
+    repo_root = Path(__file__).resolve().parents[4]
+    py_root = repo_root / "src" / "mvp" / "py"
+    if str(py_root) not in sys.path:
+        sys.path.insert(0, str(py_root))
+
+
+def _install_ray_stub() -> None:
+    if "ray" in sys.modules:
+        return
+
+    ray = types.ModuleType("ray")
+    ray.__path__ = []  # type: ignore[attr-defined]
+
+    def _init(*args: object, **kwargs: object) -> None:
+        return None
+
+    ray.init = _init  # type: ignore[attr-defined]
+    ray.cluster_resources = lambda: {}  # type: ignore[attr-defined]
+    ray.available_resources = lambda: {}  # type: ignore[attr-defined]
+    sys.modules["ray"] = ray
+
+    job_submission = types.ModuleType("ray.job_submission")
+    job_submission.__path__ = []  # type: ignore[attr-defined]
+
+    class JobSubmissionClient:  # minimal stub; tests can monkeypatch methods
+        def __init__(self, address: str):
+            self.address = address
+
+        def submit_job(self, **kwargs: object) -> str:
+            raise NotImplementedError
+
+        def get_job_status(self, submission_id: str) -> str:
+            raise NotImplementedError
+
+        def stop_job(self, submission_id: str) -> bool:
+            raise NotImplementedError
+
+        def get_job_logs(self, submission_id: str) -> str:
+            raise NotImplementedError
+
+        def list_jobs(self) -> list[object]:
+            return []
+
+    job_submission.JobSubmissionClient = JobSubmissionClient  # type: ignore[attr-defined]
+    sys.modules["ray.job_submission"] = job_submission
+    ray.job_submission = job_submission  # type: ignore[attr-defined]
+
+    private = types.ModuleType("ray._private")
+    private.__path__ = []  # type: ignore[attr-defined]
+    state = types.ModuleType("ray._private.state")
+
+    def available_resources_per_node() -> dict[str, object]:
+        return {}
+
+    state.available_resources_per_node = available_resources_per_node  # type: ignore[attr-defined]
+    sys.modules["ray._private"] = private
+    sys.modules["ray._private.state"] = state
+    private.state = state  # type: ignore[attr-defined]
+    ray._private = private  # type: ignore[attr-defined]
+
+
+_ensure_mvp_py_on_path()
+_install_ray_stub()
+
+
+def pytest_configure(config: object) -> None:
+    os.environ.setdefault("PYTHONUTF8", "1")
+