26 lines
990 B
Go
26 lines
990 B
Go
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package basic
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import (
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"testing"
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"time"
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)
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func TestOccultationRiseSetNewRootKeepsExistingBranch(t *testing.T) {
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start := time.Date(2025, 1, 1, 0, 0, 0, 0, time.UTC)
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for _, offset := range []float64{0, 160, -200} {
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point := func(lon float64, at time.Time) OccultationPathPoint {
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return OccultationPathPoint{Time: at, Longitude: normalizeLongitude(lon + offset), Latitude: 58}
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}
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tracks := []*occultationRiseSetTrack{{segments: [][]OccultationPathPoint{{point(20, start)}}}}
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tracks = appendOccultationRiseSetSamples(tracks, []OccultationPathPoint{
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point(14, start.Add(time.Minute)), point(19, start.Add(time.Minute)),
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}, 1.0/1440)
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if len(tracks) != 2 || len(tracks[0].segments[0]) != 2 || len(tracks[1].segments[0]) != 1 {
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t.Fatalf("offset=%g: new root did not get its own track", offset)
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}
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if got := tracks[0].segments[0][1].Longitude; got != normalizeLongitude(19+offset) {
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t.Errorf("offset=%g: existing track jumped to longitude %g", offset, got)
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}
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}
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}
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