From 3c6b4baa2aeeb00cd72511ed80d77d20ff36e079 Mon Sep 17 00:00:00 2001
From: WeiCHEN <weichen@WeiCHENdeMac-mini.local>
Date: Tue, 8 Sep 2026 20:25:33 +0800
Subject: [PATCH] =?UTF-8?q?test(engine):=20=E5=A2=9E=E5=8A=A0=20cleanSvgFo?=
 =?UTF-8?q?rCanvas=20=E5=87=80=E5=8C=96=E4=B8=8E=E9=98=B2=E6=B1=A1?=
 =?UTF-8?q?=E6=9F=93=E5=8D=95=E5=85=83=E6=B5=8B=E8=AF=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Co-authored-by: Cursor <cursoragent@cursor.com>
---
 web/src/engine/renderers.test.ts | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/web/src/engine/renderers.test.ts b/web/src/engine/renderers.test.ts
index 6e45eb21..849cff49 100644
--- a/web/src/engine/renderers.test.ts
+++ b/web/src/engine/renderers.test.ts
@@ -7,6 +7,7 @@ import {
   parseInlineContent,
   latexToOmml,
   sanitizeMermaidCode,
+  cleanSvgForCanvas,
 } from './docxRenderer';
 import { buildXlsxWorkbook, exportDocumentToXlsx } from './xlsxRenderer';
 import { Packer, ImportedXmlComponent } from 'docx';
@@ -71,6 +72,15 @@ test('DOCX 渲染器 Mermaid 语法净化与容错测试 (sanitizeMermaidCode)',
   assert.ok(sanitized.includes('Display["4K医用级超低延迟监视器 (延时 < 35ms)"]'));
 });
 
+test('DOCX 渲染器 SVG 净化防 Canvas 污染测试 (cleanSvgForCanvas)', () => {
+  const dirtySvg = `<svg><style>@import url("https://fonts.googleapis.com/css?family=Open+Sans");</style><foreignObject width="100" height="40"><div><span>双CMOS分光棱镜</span></div></foreignObject></svg>`;
+  const cleaned = cleanSvgForCanvas(dirtySvg);
+
+  assert.ok(!cleaned.includes('@import'), '应彻底剥离 @import 外部网络字体');
+  assert.ok(!cleaned.includes('<foreignObject'), '应彻底移除或转换为 SVG 原生 <text>，杜绝 Tainted Canvas');
+  assert.ok(cleaned.includes('双CMOS分光棱镜'), '必须保留节点文本内容');
+});
+
 test('DOCX 渲染器全量编译测试 (buildDocxModel & exportDocumentToDocx)', async () => {
   const ast = markdownToBlockAST(SAMPLE_MD, {
     docId: 'doc_docx_test_001',