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Jyotisha/tests/test_calculation_p0_regressions.py
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Python

from __future__ import annotations
import sys
from datetime import datetime
from pathlib import Path
from types import SimpleNamespace
import pytest
SCRIPTS = Path(__file__).resolve().parents[1] / "scripts"
if str(SCRIPTS) not in sys.path:
sys.path.insert(0, str(SCRIPTS))
import domain_calculation_service as calculation_service # noqa: E402
import jyotish_api_server # noqa: E402
from jyotish_api_server import JyotishAPIHandler # noqa: E402
from jyotish_engine import _compute_chart_from_args # noqa: E402
BIRTH = {
"year": 1990,
"month": 1,
"day": 1,
"hour": 12,
"minute": 0,
"second": 0,
"lat": 28.6139,
"lon": 77.2090,
"tz": 5.5,
"ayanamsa": "lahiri",
}
def test_true_node_changes_effective_rahu_and_contract() -> None:
mean = calculation_service.compute_chart({**BIRTH, "node_mode": "mean"})
true = calculation_service.compute_chart({**BIRTH, "node_mode": "true"})
assert mean["planets"]["Rahu"]["lon"] != pytest.approx(
true["planets"]["Rahu"]["lon"], abs=1e-8
)
assert mean["calculation_contract"]["effective"]["node_mode"] == "mean"
assert true["calculation_contract"]["effective"]["node_mode"] == "true"
assert mean["result_hash"] != true["result_hash"]
def test_vimshottari_uses_birth_balance_as_canonical_timeline() -> None:
birth_dt = datetime(1990, 1, 1, 12, 0)
result = calculation_service.compute_vimshottari_timeline(
birth_dt=birth_dt,
moon_lon=100.0,
current_date=birth_dt,
)
first = result["periods"][0]
assert first["lord"] == "Saturn"
assert first["start"] == "1980-07-02"
assert first["end"] == "1999-07-02"
assert result["birth_balance"]["remaining_years"] == pytest.approx(9.5)
assert result["calculation_contract"]["algorithm"] == "vimshottari_birth_balance"
def test_sade_sati_uses_real_saturn_transit_for_reference_date() -> None:
result = calculation_service.compute_sade_sati(
moon_degree=300.0,
asc_degree=330.0,
reference_date="2026-07-11",
tz=5.5,
ayanamsa="lahiri",
)
oracle = calculation_service.compute_transit_longitude(
planet="Saturn",
reference_date="2026-07-11",
tz=5.5,
ayanamsa="lahiri",
)
assert result["transit_saturn_lon"] == pytest.approx(oracle["longitude"], abs=1e-8)
assert result["provenance"]["data_layer"] == "true_transit_positions"
assert result["provenance"]["reference_date"] == "2026-07-11"
def test_jupiter_transit_uses_the_canonical_transit_contract() -> None:
result = calculation_service.compute_transit_longitude(
planet="Jupiter",
reference_date="2026-07-11",
tz=5.5,
ayanamsa="lahiri",
)
assert result["planet"] == "Jupiter"
assert 0 <= result["longitude"] < 360
assert result["data_layer"] == "true_transit_positions"
assert result["ayanamsa"] == "lahiri"
def test_timezone_inference_fails_closed(monkeypatch: pytest.MonkeyPatch) -> None:
monkeypatch.setattr(
calculation_service,
"_lookup_timezone_name",
lambda _lat, _lon: None,
)
with pytest.raises(calculation_service.TimezoneInferenceError, match="timezone inference"):
calculation_service.infer_timezone_offset(
lat=0.0,
lon=0.0,
local_datetime=datetime(1990, 1, 1, 12, 0),
)
def test_chart_hash_matches_domain_cli_and_rest(
monkeypatch: pytest.MonkeyPatch,
) -> None:
monkeypatch.setenv("JYOTISH_API_CHART_CACHE_TTL_SECONDS", "0")
monkeypatch.setenv("VEDASTRO_ENABLE_NETWORK", "0")
monkeypatch.setattr(
jyotish_api_server,
"_attach_vedastro_main_entry_overview",
lambda result, _birth: result,
)
expected = calculation_service.compute_chart({**BIRTH, "node_mode": "true"})
cli, _asc_idx, _jd, _ayanamsa = _compute_chart_from_args(
SimpleNamespace(**BIRTH, node_mode="true")
)
rest = JyotishAPIHandler.__new__(JyotishAPIHandler)._compute_chart_sync(
{**BIRTH, "node_mode": "true", "transit_date": "2026-07-11"}
)
assert cli["result_hash"] == expected["result_hash"]
assert rest["result_hash"] == expected["result_hash"]
assert rest["birth"]["node_mode"] == "true"
assert rest["calculation_contract"]["effective"]["node_mode"] == "true"