78 lines
2.6 KiB
Go
78 lines
2.6 KiB
Go
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package eclipse
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import (
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"testing"
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"time"
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)
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// 请求的电平必须原样返回：JDE 往返只有微秒级误差，但整分电平会落到 59.999 秒。
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func TestSolarEclipsePartialFootprintsReturnsRequestedGreatestTimes(t *testing.T) {
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date := time.Date(2009, time.July, 22, 0, 0, 0, 0, time.UTC)
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levels := []time.Time{
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time.Date(2009, time.July, 22, 1, 0, 0, 0, time.UTC),
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time.Date(2009, time.July, 22, 2, 0, 0, 0, time.UTC),
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time.Date(2009, time.July, 22, 3, 0, 0, 0, time.UTC),
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}
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info, ok := SolarEclipsePartialFootprintsNASABulletinSplitK(date, SolarEclipsePartialFootprintOptions{
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Step: 10 * time.Minute, BoundaryPoints: 24, DisableRiseSet: true,
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GreatestTimeValues: levels,
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})
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if !ok {
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t.Fatal("missing footprints")
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}
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if len(info.GreatestTimeContours) == 0 {
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t.Fatal("no greatest-time contours")
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}
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for _, contour := range info.GreatestTimeContours {
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matched := false
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for _, level := range levels {
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if contour.Time.Equal(level) {
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matched = true
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break
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}
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}
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if !matched {
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t.Fatalf("contour time %s is not one of the requested levels",
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contour.Time.Format("15:04:05.000"))
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}
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for _, segment := range contour.Segments {
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if len(segment) < 2 {
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t.Fatalf("contour %s has a degenerate branch", contour.Time.Format("15:04"))
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}
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}
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}
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}
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// 按步长请求等时线：时刻按输入时区对齐到整刻度、落在偏食窗口内，并回填 JDE。
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func TestSolarEclipsePartialFootprintsGreatestTimeStep(t *testing.T) {
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location := time.FixedZone("UTC+8", 8*3600)
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date := time.Date(2009, time.July, 22, 0, 0, 0, 0, location)
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info, ok := SolarEclipsePartialFootprintsNASABulletinSplitK(date, SolarEclipsePartialFootprintOptions{
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Step: 10 * time.Minute, BoundaryPoints: 24, DisableRiseSet: true,
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GreatestTimeStep: 30 * time.Minute,
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})
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if !ok {
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t.Fatal("missing footprints")
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}
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if len(info.GreatestTimeContours) < 2 {
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t.Fatalf("step request produced %d contours", len(info.GreatestTimeContours))
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}
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for _, contour := range info.GreatestTimeContours {
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if contour.JDE == 0 {
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t.Fatal("contour JDE is not populated")
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}
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if contour.Time.Nanosecond() != 0 || contour.Time.Second() != 0 || contour.Time.Minute()%30 != 0 {
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t.Fatalf("contour time %s is not aligned to the requested step",
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contour.Time.Format("15:04:05.000000000"))
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}
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if contour.Time.Before(info.Eclipse.PartialBeginOnEarth) || contour.Time.After(info.Eclipse.PartialEndOnEarth) {
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t.Fatalf("contour %s is outside the partial-eclipse window", contour.Time.Format("15:04"))
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}
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for _, segment := range contour.Segments {
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if len(segment) < 2 {
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t.Fatalf("contour %s has a degenerate branch", contour.Time.Format("15:04"))
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}
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}
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}
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}
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