feat: parse desktop OneNote table of contents

src/onenote/onepkg/joplin-fixture.test.ts

@@ -5,6 +5,7 @@ import { resolve } from 'node:path';
 import { describe, expect, it } from 'vitest';
 
 import { parseOneNoteSection } from '../parser/parse-section.js';
+import { parseOneNoteTableOfContents } from '../parser/parse-toc.js';
 import { enumerateCabinet, extractCabinet } from './cabinet.js';
 import { openOneNotePackage } from './package.js';
 
@@ -111,4 +112,36 @@ describe('pinned Joplin .onepkg fixture', () => {
       text: 'Link to page: Page 2',
     });
   });
+
+  it('interprets both desktop TOCs with their authored ordering', async () => {
+    const extraction = await extractCabinet(JOPLIN_ONEPKG);
+    const root = extraction.extractedEntries.find(
+      (entry) => entry.normalizedPath === 'Open Notebook.onetoc2'
+    );
+    const group = extraction.extractedEntries.find(
+      (entry) => entry.normalizedPath === 'Section group/Open Notebook.onetoc2'
+    );
+    expect(root).toBeDefined();
+    expect(group).toBeDefined();
+
+    expect(
+      parseOneNoteTableOfContents(root!.bytes, {
+        sourceName: root!.normalizedPath,
+      }).entries.map((entry) => [entry.orderingId, entry.filename])
+    ).toEqual([
+      [1, 'Tést!.one'],
+      [2, 'OneNote_RecycleBin'],
+      [3, 'Another section.one'],
+      [4, 'Section group'],
+      [5, '⅀⸨ Unicode ⸩.one'],
+    ]);
+    expect(
+      parseOneNoteTableOfContents(group!.bytes, {
+        sourceName: group!.normalizedPath,
+      }).entries.map((entry) => [entry.orderingId, entry.filename])
+    ).toEqual([
+      [1, 'A.one'],
+      [2, 'B.one'],
+    ]);
+  });
 });