update add feed initial balance on cycle and fix its feature

backend/apps/operations/tests_karung_web.py

@@ -0,0 +1,99 @@
+from datetime import date
+from unittest.mock import patch
+
+from django.core.exceptions import ValidationError
+from django.test import TestCase, override_settings
+
+from apps.operations.services.karung_web import (
+    KarungWebError,
+    fetch_iot_masuk_for_date,
+    initial_balance_accuracy,
+    masuk_source_for_kandang,
+)
+
+COMBINED_SAMPLE = {
+    "masuk": {
+        "history": [
+            {"counter_value": 160, "date": "2026-09-02", "id": 17, "source": "K1 - In"},
+            {"counter_value": 80, "date": "2026-09-02", "id": 19, "source": "K2 - In"},
+            {"counter_value": 112, "date": "2026-08-27", "id": 9, "source": "K1 - In"},
+            {"counter_value": 32, "date": "2026-08-27", "id": 11, "source": "K2 - In"},
+        ],
+        "today": [
+            {"karung": 160, "source": "K1 - In"},
+            {"karung": 80, "source": "K2 - In"},
+        ],
+    }
+}
+
+
+class MasukSourceForKandangTests(TestCase):
+    def test_maps_kandang_number_to_iot_source(self):
+        self.assertEqual(masuk_source_for_kandang("Kandang 1"), "K1 - In")
+        self.assertEqual(masuk_source_for_kandang("Kandang 2"), "K2 - In")
+
+    def test_rejects_kandang_name_without_number(self):
+        with self.assertRaises(ValidationError):
+            masuk_source_for_kandang("Utara")
+
+
+class InitialBalanceAccuracyTests(TestCase):
+    def test_returns_ratio_when_both_values_positive(self):
+        self.assertEqual(initial_balance_accuracy(120, 115), 95.8)
+
+    def test_returns_100_when_both_zero(self):
+        self.assertEqual(initial_balance_accuracy(0, 0), 100.0)
+
+    def test_returns_none_when_iot_missing(self):
+        self.assertIsNone(initial_balance_accuracy(120, None))
+
+
+@override_settings(KARUNG_WEB_ADMIN_BASE_URL="http://karung.internal")
+class KarungWebCombinedTests(TestCase):
+    @patch("apps.operations.services.karung_web.KarungWebClient.fetch_combined")
+    def test_fetch_iot_masuk_for_date_uses_kandang_specific_history_row(self, mock_fetch):
+        mock_fetch.return_value = COMBINED_SAMPLE
+
+        result = fetch_iot_masuk_for_date(date(2026, 8, 27), kandang_name="Kandang 2")
+
+        self.assertEqual(result, 32)
+
+    @patch("apps.operations.services.karung_web.KarungWebClient.fetch_combined")
+    def test_fetch_iot_masuk_for_date_matches_source_case_insensitively(self, mock_fetch):
+        mock_fetch.return_value = {
+            "masuk": {
+                "history": [
+                    {"counter_value": 99, "date": "2026-08-27", "source": "K1 - in"},
+                ]
+            }
+        }
+
+        result = fetch_iot_masuk_for_date(date(2026, 8, 27), kandang_name="Kandang 1")
+
+        self.assertEqual(result, 99)
+
+    @patch("apps.operations.services.karung_web.date")
+    @patch("apps.operations.services.karung_web.KarungWebClient.fetch_combined")
+    def test_fetch_iot_masuk_for_date_falls_back_to_today_live_rows(self, mock_fetch, mock_date):
+        mock_date.today.return_value = date(2026, 9, 2)
+        mock_fetch.return_value = {"masuk": {"history": [], "today": COMBINED_SAMPLE["masuk"]["today"]}}
+
+        result = fetch_iot_masuk_for_date(date(2026, 9, 2), kandang_name="Kandang 1")
+
+        self.assertEqual(result, 160)
+
+    @patch("apps.operations.services.karung_web.KarungWebClient.fetch_combined")
+    def test_fetch_iot_masuk_for_date_returns_none_when_day_missing(self, mock_fetch):
+        mock_fetch.return_value = COMBINED_SAMPLE
+
+        result = fetch_iot_masuk_for_date(date(2026, 8, 26), kandang_name="Kandang 1")
+
+        self.assertIsNone(result)
+
+    @patch(
+        "apps.operations.services.karung_web.KarungWebClient.fetch_combined",
+        side_effect=KarungWebError("upstream down"),
+    )
+    def test_fetch_iot_masuk_for_date_propagates_upstream_errors(self, _mock_fetch):
+        with self.assertRaises(KarungWebError):
+            fetch_iot_masuk_for_date(date(2026, 8, 27), kandang_name="Kandang 1")