fix(special-lagnas): compute birth-instant points via PyJHora (BUG-1265, upstream 1918ffaf)

tests/test_special_lagnas_birth_instant.py

@@ -0,0 +1,79 @@
+"""BUG-1265: special lagnas come from the birth instant, not the identical local formulas."""
+
+from __future__ import annotations
+
+import json
+from datetime import datetime
+from pathlib import Path
+
+import pytest
+
+from scripts.ayanamsa_utils import ACTIVE_AYANAMSA_NAME, apply_ayanamsa
+from scripts.special_lagnas import SpecialLagnasCalculator, bhava_house_rows
+
+ROOT = Path(__file__).resolve().parents[1]
+
+
+def _jobs_birth():
+    payload = json.loads((ROOT / "references" / "public_oracle_cases.json").read_text(encoding="utf-8"))
+    birth = next(row["birth"] for row in payload["cases"] if row["id"] == "steve_jobs_1955_aa")
+    return birth
+
+
+def test_public_jobs_hora_and_ghati_differ_and_match_birth_instant():
+    birth = _jobs_birth()
+    apply_ayanamsa("raman")
+    before = ACTIVE_AYANAMSA_NAME
+    moment = datetime(birth["year"], birth["month"], birth["day"], birth["hour"], birth["minute"], birth["second"])
+    rows = SpecialLagnasCalculator().calculate_all_lagnas(
+        0.0, 0.0, 0.0, moment, moment.replace(hour=6),
+        lat=birth["lat"], lon=birth["lon"], tz_offset=birth["tz"], ayanamsa="lahiri",
+    )
+    expected = {
+        "Bhava_Lagna": ("Leo", 17.12),
+        "Hora_Lagna": ("Aquarius", 22.58),
+        "Ghati_Lagna": ("Virgo", 8.94),
+    }
+    for key, (sign, degree) in expected.items():
+        assert rows[key]["status"] == "computed"
+        assert rows[key]["sign"] == sign
+        assert rows[key]["sign_degree"] == pytest.approx(degree, abs=0.01)
+        assert rows[key]["source"] == "pyjhora_drik"
+        assert rows[key]["ayanamsa"] == "lahiri"
+    assert rows["Hora_Lagna"]["sign"] != rows["Ghati_Lagna"]["sign"]
+    for key in ("Sree_Lagna", "Indu_Lagna", "Pranapada_Lagna", "Varnada_Lagna"):
+        assert rows[key]["status"] == "computed"
+        assert rows[key]["sign"]
+    assert ACTIVE_AYANAMSA_NAME == before
+
+
+def test_missing_coordinates_block_pyjhora_points_without_inventing_them():
+    moment = datetime(1955, 2, 24, 19, 15, 0)
+    rows = SpecialLagnasCalculator().calculate_all_lagnas(10.0, 20.0, 30.0, moment, moment.replace(hour=6))
+    assert rows["Sree_Lagna"]["status"] == "blocked"
+    assert rows["Sree_Lagna"]["reason"] == "birth_coordinates_or_timezone_missing"
+    assert rows["Hora_Lagna"]["formula"]
+
+
+def test_missing_pyjhora_function_is_blocked(monkeypatch):
+    import jhora.panchanga.drik as drik
+
+    monkeypatch.delattr(drik, "pranapada_lagna", raising=False)
+    birth = _jobs_birth()
+    moment = datetime(birth["year"], birth["month"], birth["day"], birth["hour"], birth["minute"], birth["second"])
+    rows = SpecialLagnasCalculator().calculate_pyjhora_special_lagnas(
+        moment, birth["lat"], birth["lon"], birth["tz"], 0.0, ayanamsa="lahiri",
+    )
+    assert rows["Pranapada_Lagna"]["status"] == "blocked"
+    assert "pranapada_lagna" in rows["Pranapada_Lagna"]["reason"]
+
+
+def test_bhava_house_rows_drop_summary_rows():
+    rows = bhava_house_rows({
+        "houses": [
+            {"house": 1, "sign": "Aries"},
+            {"house": "total", "sign": "summary"},
+            {"house": 12, "sign": "Pisces"},
+        ]
+    })
+    assert [row["house"] for row in rows] == [1, 12]