wip: preserve local engine and agent workflow changes before ganjihong refactor integration

backend/tests/test_render_bundle.py

@@ -0,0 +1,58 @@
+from __future__ import annotations
+
+import sys
+import tempfile
+import unittest
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parents[2]
+sys.path.insert(0, str(ROOT / "backend"))
+
+from app.services.render_bundle import render_section  # noqa: E402
+from app.settings import ProviderConfig, ProviderModel, Settings  # noqa: E402
+
+
+BACKEND = ROOT / "backend"
+
+
+def settings(root: Path) -> Settings:
+    provider = ProviderConfig("test", "Test", "https://example.invalid/v1", "test-key", (ProviderModel("test-model"),))
+    return Settings(
+        task_root=root / "tasks",
+        conversation_root=root / "conversations",
+        library_root=BACKEND / "cdsl_library",
+        engine_root=BACKEND / "engine" / "cdsl_engine",
+        llm_base_url=provider.base_url,
+        llm_api_key=provider.api_key,
+        llm_model="test-model",
+        llm_timeout_s=1,
+        default_provider_id="test",
+        providers=(provider,),
+    )
+
+
+class RenderBundleTests(unittest.TestCase):
+    def test_section_uses_build123d_part_operation_and_emits_a_png(self) -> None:
+        import build123d as b3d
+
+        with tempfile.TemporaryDirectory() as temporary:
+            root = Path(temporary)
+            step_path = root / "block.step"
+            b3d.export_step(b3d.Box(20, 10, 8), str(step_path))
+
+            result = render_section(
+                settings(root),
+                step_path=step_path,
+                output_dir=root / "section",
+                origin_mm=[10, 5, 4],
+                normal=[1, 0, 0],
+            )
+
+            self.assertTrue(Path(str(result["path"])).is_file())
+            self.assertGreater(int(result["contour_count"]), 0)
+            self.assertEqual(result["renderer"], "python-occ-section-pillow")
+
+
+if __name__ == "__main__":
+    unittest.main()