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73 lines
2.1 KiB
73 lines
2.1 KiB
package zxchainsdk
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import (
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"bytes"
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"context"
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"image/color"
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"image/png"
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"testing"
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"github.com/fogleman/gg"
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)
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func TestGenerateHashCertificateWithExplicitFontPath(t *testing.T) {
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fontPath := firstAvailableTestFont(t)
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result, err := GenerateHashCertificate(context.Background(), HashCertificateRequest{
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Title: "数字作品区块链存证证明",
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CertNo: "2026051315081710006",
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UserName: "测试用户",
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UserID: "10006",
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WorkName: "测试作品",
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TaskID: "task-10006",
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CompletedAt: "2026.05.13 15:08:17",
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EvidenceID: "ev-test",
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TxID: "tx-test",
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BlockHeight: "123456",
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FinalHash: "final-hash-test",
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EvidenceHash: "evidence-hash-test",
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TrustedAt: "2026.05.13 15:08:17",
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VerifyURL: "https://example.com/certificates/ev-test/certificate.png",
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WorkPreviewBytes: solidPNG(t, 120, 80, color.RGBA{R: 0x33, G: 0x66, B: 0xcc, A: 0xff}),
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BackgroundBytes: solidPNG(t, 1369, 1920, color.RGBA{R: 0xff, G: 0xfd, B: 0xf8, A: 0xff}),
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LogoBytes: solidPNG(t, 304, 60, color.RGBA{R: 0x11, G: 0x11, B: 0x11, A: 0xff}),
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FontPath: fontPath,
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BucketBaseURL: "https://example.com",
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})
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if err != nil {
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t.Fatalf("GenerateHashCertificate() error = %v", err)
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}
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if len(result.PNG) == 0 {
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t.Fatal("GenerateHashCertificate() returned empty PNG")
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}
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if _, err := png.Decode(bytes.NewReader(result.PNG)); err != nil {
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t.Fatalf("generated certificate is not a valid PNG: %v", err)
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}
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}
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func firstAvailableTestFont(t *testing.T) string {
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t.Helper()
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for _, candidate := range certificateFontCandidates() {
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if _, err := validateCertificateFont(candidate); err == nil {
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return candidate
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}
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}
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t.Skip("no loadable certificate font installed")
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return ""
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}
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func solidPNG(t *testing.T, width, height int, c color.Color) []byte {
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t.Helper()
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dc := gg.NewContext(width, height)
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dc.SetColor(c)
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dc.DrawRectangle(0, 0, float64(width), float64(height))
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dc.Fill()
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var buf bytes.Buffer
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if err := png.Encode(&buf, dc.Image()); err != nil {
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t.Fatalf("encode test PNG: %v", err)
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}
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return buf.Bytes()
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}
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