42 lines
1.2 KiB
Go
42 lines
1.2 KiB
Go
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package catalog
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import (
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"math"
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"os"
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"testing"
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"time"
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"b612.me/astro/basic"
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)
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func TestCatalogCoordinatesFeedSearches(t *testing.T) {
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bsc := readFixtureCatalog(t, "bsc5_sample.dat", func(f *os.File) (*Catalog, error) {
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return ReadBSC5(f, ReadOptions{})
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})
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target, ok := bsc.Lookup("HR 4799")
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if !ok {
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t.Fatal("HR 4799 missing")
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}
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location := time.FixedZone("CST", 8*3600)
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best, err := basic.FindBestStarOccultations(
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time.Date(2025, 6, 5, 0, 0, 0, 0, location),
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time.Date(2025, 6, 6, 0, 0, 0, 0, location),
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target.Coordinate, basic.OccultationSearchOptions{MaxEvents: 1})
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if err != nil || len(best) != 1 {
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t.Fatalf("occultation = %d events, %v", len(best), err)
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}
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if d := best[0].Greatest.Sub(time.Date(2025, 6, 5, 20, 2, 7, 700000000, location)).Seconds(); math.Abs(d) > 5 {
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t.Fatalf("greatest off by %.1f s", d)
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}
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sirius, ok := bsc.Lookup("HR 2491")
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if !ok {
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t.Fatal("HR 2491 missing")
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}
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startJD := basic.Date2JD(time.Date(2025, 1, 1, 0, 0, 0, 0, time.UTC))
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events := basic.FindStarHeliacalEventsWithInstance(sirius.Coordinate, sirius.Magnitude, startJD, startJD+366, 31.2, 30.0, basic.HeliacalOptions{}, nil)
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if len(events) == 0 {
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t.Fatal("no heliacal events for Sirius at Cairo")
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}
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}
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