39 lines
1.2 KiB
Go
39 lines
1.2 KiB
Go
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package geojson_test
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import (
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"testing"
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"time"
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"b612.me/astro/geojson"
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"b612.me/astro/moon"
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)
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func TestMarshalPlanetOccultationVenus20250919OptimizedContoursAreStrictlyOrdered(t *testing.T) {
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day := time.Date(2025, 9, 19, 0, 0, 0, 0, time.UTC)
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paths, err := moon.FindPlanetOccultationPaths(
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day.Add(-12*time.Hour), day.Add(36*time.Hour), moon.OccultationVenus,
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moon.OccultationPathOptions{
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Step: 5 * time.Minute,
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TargetSpacingKM: 300,
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DisableFootprints: true,
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RiseSetStep: 30 * time.Second,
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},
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)
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if err != nil || len(paths) != 1 {
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t.Fatalf("FindPlanetOccultationPaths paths=%d err=%v, want one path", len(paths), err)
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}
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if len(paths[0].PartialBandContours) != 2 {
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t.Fatalf("partial contours=%d, want two", len(paths[0].PartialBandContours))
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}
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for contourIndex, contour := range paths[0].PartialBandContours {
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for index := 1; index < len(contour); index++ {
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if !contour[index].Time.After(contour[index-1].Time) {
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t.Fatalf("contour %d sample %d is not strictly increasing: %s then %s", contourIndex, index, contour[index-1].Time, contour[index].Time)
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}
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}
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}
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if _, err := geojson.MarshalPlanetOccultation(paths[0]); err != nil {
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t.Fatalf("MarshalPlanetOccultation: %v", err)
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}
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}
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