test(paste): cover fromSpans guard paths and document headingSizeMap thresholds

Author: ErickPetru

packages/super-editor/src/core/inputRules/google-docs-paste/google-docs-paste.js

@@ -5,7 +5,8 @@ import { createSingleItemList } from '../html/html-helpers.js';
 import { getLvlTextForGoogleList, googleNumDefMap } from '../../helpers/pasteListHelpers.js';
 import { wrapTextsInRuns } from '../docx-paste/docx-paste.js';
 
-// Ordered largest → smallest; first match wins.
+// Match Google Docs default heading sizes (H1=20pt, H2=18pt, H3=14pt, H4=12pt, H5=11pt).
+// Descending order so oversized fonts (e.g. 24pt) still resolve to closest heading.
 const headingSizeMap = [
   { minPt: 20, tag: 'h1' },
   { minPt: 16, tag: 'h2' },

packages/super-editor/src/core/inputRules/google-docs-paste/google-docs-paste.test.js

@@ -187,6 +187,22 @@ describe('handleGoogleDocsHtml', () => {
       expect(dom.querySelector('h1')?.textContent?.trim()).toBe('Bold p, size on span');
     });
 
+    it('does not convert when one span is missing a font-size', () => {
+      const html = `
+        <p><span style="font-size:20pt;font-weight:700">A</span><span style="font-weight:700">B</span></p>
+      `;
+      const dom = parseHeadings(html);
+      expect(dom.querySelector('h1,h2,h3,h4,h5')).toBeNull();
+    });
+
+    it('does not convert when spans have inconsistent font sizes', () => {
+      const html = `
+        <p><span style="font-size:20pt;font-weight:700">A</span><span style="font-size:14pt;font-weight:700">B</span></p>
+      `;
+      const dom = parseHeadings(html);
+      expect(dom.querySelector('h1,h2,h3,h4,h5')).toBeNull();
+    });
+
     it('converts when font-size is on <p> but font-weight is only on the child <span>', () => {
       const html = `
         <p style="font-size:20pt"><span style="font-weight:700">Split style heading</span></p>