57 lines
2.3 KiB
Go
57 lines
2.3 KiB
Go
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package basic_test
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import (
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"math"
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"testing"
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"time"
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"b612.me/astro/basic"
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)
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func TestBasicSunObservationNFullMatchesDefault(t *testing.T) {
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date := time.Date(2026, 4, 26, 9, 30, 45, 123456789, time.FixedZone("CST", 8*3600))
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ttJD := basic.TD2UT(basic.Date2JDE(date.UTC()), true)
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jde := basic.Date2JDE(date)
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lon := 116.391
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lat := 39.907
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tz := 8.0
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height := 45.0
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twilightAngle := -6.0
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assertSame := func(name string, got, want float64) {
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t.Helper()
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if math.Float64bits(got) != math.Float64bits(want) {
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t.Fatalf("%s full-n mismatch", name)
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}
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}
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assertSameEvent := func(name string, got float64, gotErr error, want float64, wantErr error) {
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t.Helper()
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switch {
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case gotErr == nil && wantErr == nil:
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assertSame(name, got, want)
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case gotErr == nil || wantErr == nil:
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t.Fatalf("%s full-n mismatch", name)
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case gotErr != wantErr:
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t.Fatalf("%s full-n mismatch", name)
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}
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}
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assertSame("SunTime", basic.SunTime(ttJD), basic.SunTimeN(ttJD, -1))
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assertSame("CulminationTime", basic.CulminationTime(jde, lon, tz), basic.CulminationTimeN(jde, lon, tz, -1))
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assertSame("SunTimeAngle", basic.SunTimeAngle(jde, lon, lat, tz), basic.SunTimeAngleN(jde, lon, lat, tz, -1))
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assertSame("SunHeight", basic.SunHeight(jde, lon, lat, tz), basic.SunHeightN(jde, lon, lat, tz, -1))
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assertSame("SunAzimuth", basic.SunAzimuth(jde, lon, lat, tz), basic.SunAzimuthN(jde, lon, lat, tz, -1))
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rise1, riseErr1 := basic.GetSunRiseTime(jde, lon, lat, tz, 1, height)
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rise2, riseErr2 := basic.GetSunRiseTimeN(jde, lon, lat, tz, 1, height, -1)
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assertSameEvent("GetSunRiseTime", rise1, riseErr1, rise2, riseErr2)
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set1, setErr1 := basic.GetSunSetTime(jde, lon, lat, tz, 1, height)
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set2, setErr2 := basic.GetSunSetTimeN(jde, lon, lat, tz, 1, height, -1)
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assertSameEvent("GetSunSetTime", set1, setErr1, set2, setErr2)
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morning1, morningErr1 := basic.MorningTwilight(jde, lon, lat, tz, twilightAngle)
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morning2, morningErr2 := basic.MorningTwilightN(jde, lon, lat, tz, twilightAngle, -1)
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assertSameEvent("MorningTwilight", morning1, morningErr1, morning2, morningErr2)
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evening1, eveningErr1 := basic.EveningTwilight(jde, lon, lat, tz, twilightAngle)
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evening2, eveningErr2 := basic.EveningTwilightN(jde, lon, lat, tz, twilightAngle, -1)
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assertSameEvent("EveningTwilight", evening1, eveningErr1, evening2, eveningErr2)
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}
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