45 lines
1.5 KiB
Go
45 lines
1.5 KiB
Go
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package svg
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import (
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"testing"
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"time"
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)
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// 详细版式必须按 Height 推导版面：放得下的尺寸不得有任何 text/rect 越界，放不下的尺寸必须明确拒绝。
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func TestLunarEclipseDetailedSVGLayoutFitsCanvas(t *testing.T) {
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date := time.Date(2025, time.March, 14, 0, 0, 0, 0, time.UTC)
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for _, test := range []struct {
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name string
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width, height int
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accepted bool
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}{
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{name: "small landscape", width: 640, height: 420},
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{name: "small landscape 800", width: 800, height: 600},
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{name: "nasa page", width: 1000, height: 1414, accepted: true},
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{name: "wide page", width: 1414, height: 1000, accepted: true},
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} {
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t.Run(test.name, func(t *testing.T) {
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rendered, ok := LunarEclipseDetailedSVG(date, LunarEclipseDetailedSVGOptions{
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Width: test.width, Height: test.height, Location: time.UTC,
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})
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if ok != test.accepted {
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t.Fatalf("%dx%d accepted = %v, want %v", test.width, test.height, ok, test.accepted)
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}
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if !test.accepted {
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if rendered != "" {
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t.Fatalf("%dx%d rejected the canvas but returned %d bytes", test.width, test.height, len(rendered))
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}
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return
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}
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assertSVGElementsInCanvas(t, rendered, test.width, test.height)
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})
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}
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// 零值走文档默认开本，版式必须落在画布内。
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defaulted, ok := LunarEclipseDetailedSVG(date, LunarEclipseDetailedSVGOptions{Location: time.UTC})
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if !ok {
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t.Fatal("default canvas was rejected")
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}
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assertSVGElementsInCanvas(t, defaulted, 1000, 1414)
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}
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