24 lines
948 B
Go
24 lines
948 B
Go
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package basic
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import "testing"
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func TestSolarEclipse43290612PolarAnnularCentralBandCloses(t *testing.T) {
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result := SolarEclipsePartialFootprints(
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JDECalc(4329, 6, 12),
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SolarEclipsePartialFootprintOptions{StepDays: 2.0 / 1440.0, BoundaryPoints: 96},
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)
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if result.Eclipse.Type != SolarEclipseAnnular || result.Eclipse.Centrality != SolarEclipseCentralTwoLimits {
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t.Fatalf("type=%s centrality=%s, want two-limit annular eclipse", result.Eclipse.Type, result.Eclipse.Centrality)
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}
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if len(result.CentralBandHorizonClosures) != 2 {
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t.Fatalf("horizon closures=%d, want two", len(result.CentralBandHorizonClosures))
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}
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if len(result.CentralBandSegments) != 1 {
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t.Fatalf("central-band segments=%d, want one closed envelope", len(result.CentralBandSegments))
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}
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ring := result.CentralBandSegments[0]
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if len(ring) < 4 || solarEclipsePathDistanceKM(ring[0], ring[len(ring)-1]) > 0.01 {
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t.Fatal("central-band envelope is not closed")
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}
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}
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