50 lines
1.8 KiB
Go
50 lines
1.8 KiB
Go
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package geojson_test
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// 开启月缘时偏食足迹与食甚等时线必须落在月缘修正后的 P1–P4 内，整条管线（足迹 → 中心带 → 编码）不得被校验拒收。
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import (
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"testing"
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"time"
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"b612.me/astro/eclipse"
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"b612.me/astro/geojson"
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"b612.me/astro/moon/limb"
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)
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func TestMarshalSolarEclipseWithLunarLimb(t *testing.T) {
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module := eclipse.NewWithInstance(nil).WithLunarLimb(limb.Default())
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for _, date := range []time.Time{
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time.Date(2028, 7, 22, 0, 0, 0, 0, time.UTC),
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time.Date(2029, 6, 12, 0, 0, 0, 0, time.UTC),
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time.Date(2032, 5, 9, 0, 0, 0, 0, time.UTC),
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time.Date(2040, 11, 4, 0, 0, 0, 0, time.UTC),
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} {
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label := date.Format("2006-01-02")
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partial, ok := module.SolarEclipsePartialFootprints(date, eclipse.SolarEclipsePartialFootprintOptions{})
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if !ok || len(partial.Footprints) == 0 {
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t.Fatalf("%s: footprints unavailable", label)
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}
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if !partial.Eclipse.LunarLimbApplied {
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t.Fatalf("%s: limb not applied to the global contacts", label)
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}
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begin, end := partial.Eclipse.PartialBeginOnEarth, partial.Eclipse.PartialEndOnEarth
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for index, footprint := range partial.Footprints {
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if footprint.Time.Before(begin) || footprint.Time.After(end) {
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t.Fatalf("%s: footprint %d at %v outside limb P1–P4 %v–%v", label, index, footprint.Time, begin, end)
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}
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}
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for index, contour := range partial.GreatestTimeContours {
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if contour.Time.Before(begin) || contour.Time.After(end) {
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t.Errorf("%s: greatest-time contour %d at %v outside limb P1–P4", label, index, contour.Time)
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}
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}
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var central *eclipse.SolarEclipsePath
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if path, ok := module.SolarEclipseCentralPath(date, eclipse.SolarEclipsePathOptions{}); ok {
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central = &path
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}
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if _, err := geojson.MarshalSolarEclipse(partial, central); err != nil {
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t.Errorf("%s: %v", label, err)
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}
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}
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}
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