117 lines
4.1 KiB
Python
117 lines
4.1 KiB
Python
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"""OCC 方案 B（常驻进程池）契约测试，见 docs/topics/performance/OCC_THROUGHPUT.md。
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覆盖：spawn 子进程 + 管道往返、操作错误回传、超时换新补位、真实 OCC 解析
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（盒体 STP 端到端）。OCC（pythonocc）仅 conda 环境提供，无 OCC 环境自动跳过。
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"""
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import os
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from pathlib import Path
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import pytest
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pytest.importorskip("OCC", reason="需要 pythonocc 运行 OCC 进程池测试")
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from moldinsight.services.occ_process_pool import OccProcessPool
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@pytest.fixture(scope="module", autouse=True)
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def _child_pythonpath():
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"""spawn 子进程不继承 pytest 的 sys.path，需经 PYTHONPATH 传递 src 目录。"""
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src_dir = str(Path(__file__).resolve().parent.parent / "src")
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prev = os.environ.get("PYTHONPATH", "")
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os.environ["PYTHONPATH"] = src_dir if not prev else f"{src_dir}{os.pathsep}{prev}"
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yield
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if prev:
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os.environ["PYTHONPATH"] = prev
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else:
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os.environ.pop("PYTHONPATH", None)
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@pytest.fixture
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async def pool():
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_pool = OccProcessPool()
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try:
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yield _pool
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finally:
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await _pool.shutdown()
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async def test_ping_roundtrip(pool):
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result = await pool.run("ping", {})
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assert result == {"pong": True}
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async def test_unknown_op_raises(pool):
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with pytest.raises(RuntimeError, match="未知 OCC 操作"):
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await pool.run("no_such_op", {})
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async def test_child_error_surfaces(pool):
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# parse_stp 指向不存在的文件：子进程内抛错，父进程应收到 RuntimeError
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with pytest.raises(RuntimeError):
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await pool.run("parse_stp", {"stp_path": "D:/no/such/file.stp"})
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async def test_timeout_replaces_worker(pool):
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# 子进程挂 15s，父进程 1s 超时 → 换新补位后池仍可用
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with pytest.raises(Exception, match=".*"):
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await pool.run("sleep", {"seconds": 15}, timeout=1)
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# 新 worker 上 ping 正常
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result = await pool.run("ping", {})
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assert result == {"pong": True}
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def _write_box_stp(path: Path) -> Path:
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from OCC.Core.BRepPrimAPI import BRepPrimAPI_MakeBox
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from OCC.Core.IFSelect import IFSelect_RetDone
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from OCC.Core.STEPControl import STEPControl_AsIs, STEPControl_Writer
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from OCC.Core.gp import gp_Pnt
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box = BRepPrimAPI_MakeBox(gp_Pnt(0, 0, 0), 100.0, 60.0, 40.0).Shape()
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writer = STEPControl_Writer()
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writer.Transfer(box, STEPControl_AsIs)
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assert writer.Write(str(path)) == IFSelect_RetDone
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return path
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async def test_parse_stp_end_to_end(pool, tmp_path):
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stp_path = _write_box_stp(tmp_path / "box.stp")
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geometry = await pool.run("parse_stp", {"stp_path": str(stp_path)})
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assert geometry["volume"] == pytest.approx(100 * 60 * 40, rel=0.01)
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assert "bounding_box" in geometry
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async def test_generate_cavity_persists_export_steps(pool, tmp_path):
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"""最复杂的迁移点：分模 + 方案形状 STEP 导出全部在子进程内完成，
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TopoDS 不跨进程传输，export_manifest 携带落盘文件清单。"""
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from moldinsight.services.material_service import MaterialService
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stp_path = _write_box_stp(tmp_path / "box.stp")
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export_dir = tmp_path / "exports"
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result = await pool.run(
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"generate_cavity",
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{
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"stp_path": str(stp_path),
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"task_id": "test-task",
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"material": dict(MaterialService.get_material("ABS")),
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"is_foam_material": False,
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"process_params": None,
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"export_out_dir": str(export_dir),
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},
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timeout=120,
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)
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plan_result = result["plan_result"]
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schemes = plan_result["candidate_schemes"]
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assert 1 <= len(schemes) <= 3
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assert plan_result["best_scheme_id"] == schemes[0]["scheme_id"]
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# TopoDS 形状不得跨进程（子进程已 pop 掉 _export_shapes）
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assert "_export_shapes" not in plan_result
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manifest = result["export_manifest"]
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assert manifest is not None
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assert manifest["schemes"]
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best = manifest["schemes"][plan_result["best_scheme_id"]]
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assert best["total_files"] >= 1
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# 落盘文件真实存在于子进程写入的 export_out_dir
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assert any((export_dir / f.get("relative_path", "")).exists() for f in best["files"])
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