refactor(db)!: finalize pooled WNDB v2 migration

tests/api/test_wndb_endpoint_threading.py

@@ -0,0 +1,68 @@
+from threading import get_ident
+from uuid import uuid4
+
+from fastapi import FastAPI
+from fastapi.testclient import TestClient
+
+from app.api.v1.endpoints.components import curves
+from app.api.v1.rest_router import api_router
+from app.auth.project_dependencies import (
+    ProjectContext,
+    get_project_business_routing,
+    get_project_context,
+)
+from app.infra.db.project_routing import ActiveProjectRouting, get_active_project_routing
+
+
+def test_sync_wndb_endpoint_parses_body_and_runs_in_worker_thread(monkeypatch) -> None:
+    call: dict[str, object] = {}
+    project_id = uuid4()
+    user_id = uuid4()
+    context = ProjectContext(
+        project_id=project_id,
+        project_code="project_a",
+        user_id=user_id,
+        project_role="member",
+    )
+    routing = ActiveProjectRouting(
+        project_code="project_a",
+        business_dsn="postgresql://user:password@db.example/project_a",
+    )
+
+    async def override_context() -> ProjectContext:
+        call["event_loop_thread"] = get_ident()
+        return context
+
+    async def override_routing() -> ActiveProjectRouting:
+        return routing
+
+    def fake_add_curve(network, changes):
+        call["worker_thread"] = get_ident()
+        call["network"] = network
+        call["operations"] = changes.operations
+        call["routing"] = get_active_project_routing()
+        return {"ok": True}
+
+    monkeypatch.setattr(curves, "add_curve", fake_add_curve)
+    app = FastAPI()
+    app.include_router(api_router)
+    app.dependency_overrides[get_project_context] = override_context
+    app.dependency_overrides[get_project_business_routing] = override_routing
+
+    with TestClient(app) as client:
+        response = client.post(
+            "/curves",
+            params={"curve": "C-1"},
+            json={"points": [[0, 10], [1, 20]]},
+        )
+
+    assert response.status_code == 201
+    assert response.json() == {"ok": True}
+    assert call == {
+        "event_loop_thread": call["event_loop_thread"],
+        "worker_thread": call["worker_thread"],
+        "network": "project_a",
+        "operations": [{"id": "C-1", "points": [[0, 10], [1, 20]]}],
+        "routing": routing,
+    }
+    assert call["worker_thread"] != call["event_loop_thread"]