M8-R06: refresh Tibber prices after startup and configuration

tests/test_api_energy_contracts.py

@@ -48,6 +48,7 @@ from __future__ import annotations
 
 from datetime import UTC, datetime, timedelta
 from typing import Any
+from unittest.mock import patch
 
 import pytest
 from fastapi.testclient import TestClient
@@ -614,6 +615,52 @@ def test_activate_contract_mutual_exclusion(contracts_client):
     assert active_contracts[0].id == id_b
 
 
+def test_activating_tibber_contract_triggers_refresh_only_after_commit(contracts_client):
+    """Inactive→active Tibber is the only contract transition that requests refresh."""
+    client, engine = contracts_client
+    _login(client)
+    created = client.post(
+        "/api/energy/contracts",
+        json=_tibber_payload(),
+        headers={"X-CSRF-Token": _CSRF},
+    )
+    contract_id = created.json()["id"]
+
+    with patch("app.api.routes.api.energy_contracts.trigger_tibber_refresh") as trigger:
+        response = client.patch(
+            f"/api/energy/contracts/{contract_id}",
+            json={"active": True},
+            headers={"X-CSRF-Token": _CSRF},
+        )
+    assert response.status_code == 200
+    assert trigger.call_count == 1
+    with Session(engine) as session:
+        assert session.get(EnergyContract, contract_id).active is True
+
+    with patch("app.api.routes.api.energy_contracts.trigger_tibber_refresh") as trigger:
+        response = client.patch(
+            f"/api/energy/contracts/{contract_id}",
+            json={"active": True},
+            headers={"X-CSRF-Token": _CSRF},
+        )
+    assert response.status_code == 200
+    trigger.assert_not_called()
+
+    manual = client.post(
+        "/api/energy/contracts",
+        json=_manual_payload(),
+        headers={"X-CSRF-Token": _CSRF},
+    ).json()
+    with patch("app.api.routes.api.energy_contracts.trigger_tibber_refresh") as trigger:
+        response = client.patch(
+            f"/api/energy/contracts/{manual['id']}",
+            json={"active": True},
+            headers={"X-CSRF-Token": _CSRF},
+        )
+    assert response.status_code == 200
+    trigger.assert_not_called()
+
+
 def test_deactivate_contract(contracts_client):
     """PATCH active=false deactivates the contract without touching others."""
     client, _ = contracts_client