add native tropical western evidence engine

tests/test_western_chart_engine.py

@@ -0,0 +1,81 @@
+"""Regression tests for the native tropical Western chart calculator."""
+
+from __future__ import annotations
+
+from scripts.western_chart_engine import (
+    build_tropical_natal_chart,
+    build_tropical_western_evidence_packet,
+)
+from scripts.jyotish_api_server import _western_evidence_packet_from_body
+from scripts.skill_release_package import _edition_files
+
+
+_BIRTH = {
+    "year": 1993,
+    "month": 4,
+    "day": 17,
+    "hour": 14,
+    "minute": 49,
+    "latitude": 36.683333,
+    "longitude": 114.35,
+    "timezone": "Asia/Shanghai",
+}
+
+
+def test_native_engine_calculates_auditable_tropical_natal_chart() -> None:
+    chart = build_tropical_natal_chart(**_BIRTH)
+
+    assert chart["source_engine"] == "pyswisseph_tropical"
+    assert chart["zodiac"] == "tropical"
+    assert chart["house_system"] == "P"
+    assert chart["natal"]["planets"]["sun"]["sign"] == "Aries"
+    assert 26 < chart["natal"]["planets"]["sun"]["longitude"] < 28
+    assert set(chart["natal"]["angles"]) == {"ascendant", "mc", "descendant", "ic"}
+    assert len(chart["natal"]["houses"]) == 12
+    assert all(1 <= planet["house"] <= 12 for planet in chart["natal"]["planets"].values())
+    assert chart["natal"]["aspects"]
+    assert all(aspect["orb"] <= aspect["allowed_orb"] for aspect in chart["natal"]["aspects"])
+
+
+def test_native_engine_marks_timing_and_interpretation_boundaries() -> None:
+    packet = build_tropical_western_evidence_packet(**_BIRTH, route_packet={"primary_theme": "career"})
+
+    assert packet["status"] == "partial"
+    assert packet["calculation"]["status"] == "used"
+    assert packet["calculation"]["source_engine"] == "pyswisseph_tropical"
+    assert "timing_techniques" in packet["missing_sections"]
+    assert "signals" in packet["missing_sections"]
+    assert "does not calculate transits" in packet["boundary"]
+
+
+def test_workflow_auto_materializes_native_western_natal_without_external_json() -> None:
+    packet = _western_evidence_packet_from_body(
+        {"entry_mode": "direct_chart", "western_mode": "auto"},
+        {"primary_theme": "career"},
+        birth_payload={
+            "year": 1993, "month": 4, "day": 17, "hour": 14, "minute": 49,
+            "second": 0, "lat": 36.683333, "lon": 114.35, "tz": 8,
+        },
+    )
+
+    assert packet is not None
+    assert packet["source_engine"] == "pyswisseph_tropical"
+    assert packet["status"] == "partial"
+
+
+def test_workflow_does_not_auto_attach_natal_western_data_to_prashna() -> None:
+    packet = _western_evidence_packet_from_body(
+        {"entry_mode": "prashna", "western_mode": "auto"},
+        {"primary_theme": "career"},
+        birth_payload={
+            "year": 1993, "month": 4, "day": 17, "hour": 14, "minute": 49,
+            "second": 0, "lat": 36.683333, "lon": 114.35, "tz": 8,
+        },
+    )
+
+    assert packet is None
+
+
+def test_release_editions_include_native_western_calculator() -> None:
+    assert "scripts/western_chart_engine.py" in _edition_files("basic_git")
+    assert "scripts/western_chart_engine.py" in _edition_files("premium_cloud_drive")