Add models and routes for costs, consumption, equipment, maintenance, and production; implement CRUD operations and unit tests

tests/unit/test_consumption.py

@@ -0,0 +1,42 @@
+from fastapi.testclient import TestClient
+from main import app
+from config.database import Base, engine
+
+# Setup and teardown
+
+
+def setup_module(module):
+    Base.metadata.create_all(bind=engine)
+
+
+def teardown_module(module):
+    Base.metadata.drop_all(bind=engine)
+
+
+client = TestClient(app)
+
+
+def test_create_and_list_consumption():
+    # Create a scenario to attach consumption
+    resp = client.post(
+        "/api/scenarios/", json={"name": "ConsScenario", "description": "consumption scenario"}
+    )
+    assert resp.status_code == 200
+    scenario = resp.json()
+    sid = scenario["id"]
+
+    # Create Consumption item
+    cons_payload = {"scenario_id": sid, "amount": 250.0,
+                    "description": "Monthly consumption"}
+    resp2 = client.post("/api/consumption/", json=cons_payload)
+    assert resp2.status_code == 200
+    cons = resp2.json()
+    assert cons["scenario_id"] == sid
+    assert cons["amount"] == 250.0
+
+    # List Consumption items
+    resp3 = client.get("/api/consumption/")
+    assert resp3.status_code == 200
+    data = resp3.json()
+    assert any(item["amount"] == 250.0 and item["scenario_id"]
+               == sid for item in data)