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@@ -1,5 +1,23 @@
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import { describe, expect, test } from 'bun:test';
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-import { extractHeadingsFromMarkdown, joinRenderedContent } from './utils';
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+import {
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+ extractFromHtml,
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+ extractHeadingsFromMarkdown,
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+ joinRenderedContent,
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+ withCssTreeWarningsSuppressed,
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+} from './utils';
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+
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+// 200 段逗号分隔的 box-shadow 链 —— csstree/csstree#294 的复现案例，
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+// 稳定触发 css-tree lexer 15000 迭代上限警告（jsdom 29 + css-tree 3.2.1 已验证）。
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+// 若上游修复后不再触发，本测试退化为弱断言（无泄漏仍成立），可移除 helper。
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+const CSS_TREE_WARNING_HTML = (() => {
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+ const shadows: string[] = [];
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+ for (let i = 1; i <= 200; i++) {
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+ shadows.push(`${i}px 0 0 -${Math.min(i + 3, 200)}px #cfcfcf`);
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+ }
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+ return `<!DOCTYPE html><html><head><style>
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+.range-block__range::-webkit-slider-thumb { box-shadow: ${shadows.join(', ')}; }
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+</style></head><body><article><h1>Hello</h1><p>World</p></article></body></html>`;
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+})();
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describe('smartfetch/utils', () => {
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test('extracts cleaned headings from markdown', () => {
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@@ -21,4 +39,57 @@ describe('smartfetch/utils', () => {
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expect(result).toContain('<!--\n---\nsource: "smartfetch"\n---\n-->');
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expect(result).toContain('<root>ok</root>');
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});
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+
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+ test('suppresses css-tree warnings during html extraction', async () => {
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+ const originalWarn = console.warn;
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+ const warnCalls: unknown[][] = [];
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+ console.warn = (...args: unknown[]) => warnCalls.push(args);
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+ try {
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+ const result = await extractFromHtml(
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+ CSS_TREE_WARNING_HTML,
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+ 'https://example.com/',
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+ false,
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+ );
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+
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+ const cssTreeWarnings = warnCalls.filter((args) =>
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+ String(args[0]).startsWith('[csstree-match]'),
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+ );
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+ expect(cssTreeWarnings).toEqual([]);
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+ expect(result.text).toContain('Hello');
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+ expect(result.text).toContain('World');
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+ } finally {
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+ console.warn = originalWarn;
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+ }
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+ });
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+
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+ test('filters only css-tree warnings inside the guard', () => {
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+ const originalWarn = console.warn;
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+ const warnCalls: unknown[][] = [];
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+ console.warn = (...args: unknown[]) => warnCalls.push(args);
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+ try {
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+ withCssTreeWarningsSuppressed(() => {
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+ console.warn('[csstree-match] BREAK after 15000 iterations');
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+ console.warn('[smartfetch] unrelated warning');
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+ });
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+
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+ expect(warnCalls).toEqual([['[smartfetch] unrelated warning']]);
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+ } finally {
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+ console.warn = originalWarn;
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+ }
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+ });
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+
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+ test('restores the original console.warn after extraction', async () => {
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+ const originalWarn = console.warn;
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+ try {
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+ await extractFromHtml(
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+ CSS_TREE_WARNING_HTML,
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+ 'https://example.com/',
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+ true,
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+ );
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+
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+ expect(console.warn).toBe(originalWarn);
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+ } finally {
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+ console.warn = originalWarn;
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+ }
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+ });
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});
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mygo