0bd254cf18
Upstream 9f9f16b3 and 872eaecf. Saham, Gulika, and Shayanadi opt into Hindu rising. The default window used by rectification and Panchanga stays the apparent-disk one. BUG-1388. Co-Authored-By: Grok (agent loop) Co-authored-by: Cursor <cursoragent@cursor.com>
77 lines
3.4 KiB
Python
77 lines
3.4 KiB
Python
from datetime import datetime
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import pytest
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import swisseph as swe
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from scripts.saham_daynight import determine_daytime
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def test_swiss_daynight_does_not_use_solar_house_proxy():
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noon = determine_daytime(datetime(2026, 7, 12, 12, 0), lat=39.9042, lon=116.4074, tz=8)
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midnight = determine_daytime(datetime(2026, 7, 12, 0, 0), lat=39.9042, lon=116.4074, tz=8)
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assert noon["status"] == "computed"
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assert noon["is_daytime"] is True
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assert midnight["is_daytime"] is False
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assert noon["method"] == "swisseph.rise_trans"
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def _legacy_apparent_daytime(moment, *, lat, lon, tz):
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"""The pre-T10 window. Rectification and Panchanga still call this default."""
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local = moment.replace(tzinfo=None)
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jd = swe.julday(local.year, local.month, local.day, local.hour + local.minute / 60 + local.second / 3600 - float(tz))
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geopos = (float(lon), float(lat), 0.0)
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rise_status, rise = swe.rise_trans(jd - 1.0, swe.SUN, swe.CALC_RISE, geopos)
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set_status, sunset = swe.rise_trans(jd - 1.0, swe.SUN, swe.CALC_SET, geopos)
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assert rise_status == 0 and set_status == 0
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sunrise_jd, sunset_jd = rise[0], sunset[0]
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while sunrise_jd > jd:
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sunrise_jd -= 1.0
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while sunset_jd > jd:
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sunset_jd -= 1.0
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is_day = sunrise_jd <= jd < sunset_jd if sunrise_jd < sunset_jd else not (sunset_jd <= jd < sunrise_jd)
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return {
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"scope": "saham_daynight_swiss",
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"status": "computed",
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"is_daytime": is_day,
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"julian_day_ut": jd,
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"sunrise_jd_ut": sunrise_jd,
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"sunset_jd_ut": sunset_jd,
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"method": "swisseph.rise_trans",
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"boundary": "Formula-specific +30 degree exceptions must be applied by the Saham rule layer, not inferred from house placement.",
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}
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def test_default_daytime_matches_rectification_apparent_sunrise():
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# active_rectification_event_engine._sunrise_local_naive calls noon with no rising argument.
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for date in ("2000-01-01", "2026-06-21", "2026-12-21"):
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noon = datetime.fromisoformat(f"{date}T12:00:00")
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current = determine_daytime(noon, lat=39.9042, lon=116.4074, tz=8)
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previous = _legacy_apparent_daytime(noon, lat=39.9042, lon=116.4074, tz=8)
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assert current == previous
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assert "next_sunrise_jd_ut" not in current
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@pytest.mark.parametrize("hour", [0, 4, 12, 23])
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@pytest.mark.parametrize("month,day", [(3, 20), (6, 21), (9, 22), (12, 21)])
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def test_hindu_consecutive_solar_events_are_recomputed_not_shifted(month, day, hour):
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moment = datetime(2026, month, day, hour)
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result = determine_daytime(moment, lat=39.9, lon=116.4, tz=8, rising="hindu")
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rise = result["sunrise_jd_ut"]
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flags = swe.FLG_SWIEPH | swe.FLG_TRUEPOS
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year, month_num, day_num, _ = swe.revjul(rise + 8 / 24)
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midnight = swe.julday(year, month_num, day_num, -8)
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def event(start, kind):
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status, times = swe.rise_trans(
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start, swe.SUN, kind | swe.BIT_HINDU_RISING, (116.4, 39.9, 0), flags=flags,
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)
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assert status == 0
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return times[0]
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assert rise == pytest.approx(event(midnight, swe.CALC_RISE), abs=1e-8, rel=0)
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assert result["sunset_jd_ut"] == pytest.approx(event(midnight, swe.CALC_SET), abs=1e-8, rel=0)
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assert result["next_sunrise_jd_ut"] == pytest.approx(event(midnight + 1, swe.CALC_RISE), abs=1e-8, rel=0)
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assert rise <= result["julian_day_ut"] < result["next_sunrise_jd_ut"]
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assert result["method"] == "swisseph.rise_trans_hindu_rising"
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