24 lines
601 B
Go
24 lines
601 B
Go
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package basic
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import (
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"math"
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"testing"
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)
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func TestMoonHorizonMatchesTopocentricAltitude(t *testing.T) {
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for _, jd := range []float64{JDECalc(2026, 3, 3), JDECalc(2025, 9, 7), JDECalc(2024, 12, 15)} {
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points := MoonHorizon(jd, 360)
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if len(points) != 360 {
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t.Fatalf("horizon points=%d", len(points))
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}
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for _, point := range points {
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if altitude := HMoonHeight(jd, point[0], point[1], 0); math.Abs(altitude) > 1e-9 {
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t.Fatalf("JD=%v point=%v altitude=%g, want zero", jd, point, altitude)
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}
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}
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}
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if MoonHorizon(math.NaN(), 360) != nil {
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t.Fatal("invalid JD accepted")
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}
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}
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