82 lines
3.0 KiB
Go
82 lines
3.0 KiB
Go
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package svg
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import (
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"regexp"
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"testing"
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"time"
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)
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var eclipseMapDataSourcePattern = regexp.MustCompile(`data-source="([^"]+)"`)
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// 降级标记必须收敛到包注释里的词表：拼错的来源会让消费方静默漏掉降级图层。
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func TestEclipseMapDataSourcesUseDocumentedVocabulary(t *testing.T) {
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// 词表必须与包注释逐项一致：常量改名或拼错都会让消费方的匹配静默失效。
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documented := []string{
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"partial-band-union", "sampled-footprint-sweep", "partial-band-contours",
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"rise-set-phase-lines", "magnitude-contours", "greatest-time-isochrones",
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"besselian-critical-envelope", "paired-limit-chords", "sampled-open-sweep",
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"central-path-limits", "penumbral-outlines", "central-shadow-outlines",
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"p1-p4-visibility-regions", "p1-p4-horizon-boundaries",
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}
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if len(documented) != len(eclipseMapDataSources) {
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t.Fatalf("vocabulary has %d entries, want %d", len(eclipseMapDataSources), len(documented))
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}
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known := make(map[string]bool, len(documented))
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for index, source := range documented {
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if eclipseMapDataSources[index] != source {
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t.Fatalf("vocabulary entry %d = %q, want %q", index, eclipseMapDataSources[index], source)
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}
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known[source] = true
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}
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solarOptions := SolarEclipseMapSVGOptions{
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Width: 960, Height: 640, Location: time.UTC, PartialStep: 10 * time.Minute,
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GreatestTimeStep: 30 * time.Minute, PenumbralOutlineStep: time.Hour, CentralShadowStep: 10 * time.Minute,
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}
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charts := map[string]string{}
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if rendered, ok := SolarEclipseMapSVG(time.Date(2024, time.April, 8, 0, 0, 0, 0, time.UTC), solarOptions); ok {
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charts["2024-04-08 total"] = rendered
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} else {
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t.Fatal("missing 2024-04-08 map")
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}
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if rendered, ok := SolarEclipseMapSVG(time.Date(2014, time.April, 29, 0, 0, 0, 0, time.UTC), solarOptions); ok {
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charts["2014-04-29 non-central"] = rendered
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} else {
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t.Fatal("missing 2014-04-29 map")
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}
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if rendered, ok := LunarEclipseMapSVG(time.Date(2026, time.March, 3, 0, 0, 0, 0, time.UTC),
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LunarEclipseMapSVGOptions{Width: 960, Height: 640, Location: time.UTC}); ok {
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charts["2026-03-03 lunar"] = rendered
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} else {
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t.Fatal("missing 2026-03-03 lunar map")
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}
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seen := map[string]bool{}
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for name, chart := range charts {
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for _, match := range eclipseMapDataSourcePattern.FindAllStringSubmatch(chart, -1) {
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if !known[match[1]] {
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t.Fatalf("%s: undocumented data-source %q", name, match[1])
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}
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seen[match[1]] = true
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}
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}
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// 主要图层必须带标记，否则消费方无法判断这一层是否降级。
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for _, source := range []string{
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eclipseMapSourcePartialBandUnion,
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eclipseMapSourcePartialBandContours,
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eclipseMapSourceRiseSetPhaseLines,
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eclipseMapSourceMagnitudeContours,
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eclipseMapSourceGreatestTimeIsochrones,
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eclipseMapSourceBesselianEnvelope,
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eclipseMapSourceCentralPathLimits,
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eclipseMapSourcePenumbralOutlines,
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eclipseMapSourceCentralShadowOutlines,
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eclipseMapSourceLunarVisibilityRegions,
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eclipseMapSourceLunarHorizonBoundaries,
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} {
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if !seen[source] {
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t.Fatalf("main layer source %q carries no data-source marker", source)
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}
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}
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}
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