28 lines
882 B
Go
28 lines
882 B
Go
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package saturn
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import (
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"math"
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"testing"
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"time"
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)
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func TestRingNFullMatchesDefault(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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got := Ring(date)
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want := RingN(date, -1)
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assertSameRingFloat(t, "EarthLatitude", got.EarthLatitude, want.EarthLatitude)
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assertSameRingFloat(t, "SunLatitude", got.SunLatitude, want.SunLatitude)
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assertSameRingFloat(t, "PositionAngle", got.PositionAngle, want.PositionAngle)
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assertSameRingFloat(t, "DeltaU", got.DeltaU, want.DeltaU)
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assertSameRingFloat(t, "MajorAxis", got.MajorAxis, want.MajorAxis)
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assertSameRingFloat(t, "MinorAxis", got.MinorAxis, want.MinorAxis)
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}
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func assertSameRingFloat(t *testing.T, 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: got %.18f want %.18f", name, got, want)
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}
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}
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