UPDATE

economy/test_economic_overview_api.py

@@ -0,0 +1,22 @@
+from __future__ import annotations
+
+from django.test import TestCase, override_settings
+from rest_framework.test import APIClient
+
+
+@override_settings(ROOT_URLCONF="economy.urls")
+class EconomicOverviewApiTests(TestCase):
+    def setUp(self):
+        self.client = APIClient()
+
+    def test_economic_overview_api_returns_mock_payload(self):
+        response = self.client.post(
+            "/overview/",
+            data={"farm_uuid": "550e8400-e29b-41d4-a716-446655440000"},
+            format="json",
+        )
+
+        self.assertEqual(response.status_code, 200)
+        payload = response.json()["data"]
+        self.assertEqual(payload["source"], "mock")
+        self.assertEqual(payload["economicData"][0]["title"], "هزینه آب")