diff --git a/.eslintignore b/.eslintignore
index abb29d655..77acd0806 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -155,6 +155,7 @@ packages/app-desktop/commands/exportNotes.js
 packages/app-desktop/commands/focusElement.js
 packages/app-desktop/commands/index.js
 packages/app-desktop/commands/openProfileDirectory.js
+packages/app-desktop/commands/renderMarkup.test.js
 packages/app-desktop/commands/renderMarkup.js
 packages/app-desktop/commands/replaceMisspelling.js
 packages/app-desktop/commands/restoreNoteRevision.js
diff --git a/.gitignore b/.gitignore
index 7beb12af8..c61785aad 100644
--- a/.gitignore
+++ b/.gitignore
@@ -132,6 +132,7 @@ packages/app-desktop/commands/exportNotes.js
 packages/app-desktop/commands/focusElement.js
 packages/app-desktop/commands/index.js
 packages/app-desktop/commands/openProfileDirectory.js
+packages/app-desktop/commands/renderMarkup.test.js
 packages/app-desktop/commands/renderMarkup.js
 packages/app-desktop/commands/replaceMisspelling.js
 packages/app-desktop/commands/restoreNoteRevision.js
diff --git a/packages/app-desktop/commands/renderMarkup.test.ts b/packages/app-desktop/commands/renderMarkup.test.ts
new file mode 100644
index 000000000..83dc3f6ca
--- /dev/null
+++ b/packages/app-desktop/commands/renderMarkup.test.ts
@@ -0,0 +1,47 @@
+import shim from '@joplin/lib/shim';
+import Resource from '@joplin/lib/models/Resource';
+import Note from '@joplin/lib/models/Note';
+import { setupDatabaseAndSynchronizer, supportDir, switchClient } from '@joplin/lib/testing/test-utils';
+import { runtime } from './renderMarkup';
+import { MarkupLanguage } from '@joplin/renderer';
+const testImagePath = `${supportDir}/photo.jpg`;
+
+const command = runtime();
+
+describe('renderMarkup', () => {
+
+	beforeEach(async () => {
+		await setupDatabaseAndSynchronizer(1);
+		await switchClient(1);
+	});
+
+	test('should return the rendered note as HTML', async () => {
+		{
+			const renderedNote = await command.execute(null, MarkupLanguage.Markdown, 'hello **strong**');
+			expect(renderedNote.html).toBe('<div id="rendered-md"><p>hello <strong>strong</strong></p>\n</div>');
+			expect(!!renderedNote.pluginAssets).toBe(true);
+			expect(!!renderedNote.cssStrings).toBe(true);
+		}
+
+		{
+			const renderedNote = await await command.execute(null, MarkupLanguage.Markdown, '- [ ] Beer\n- [x] Milk\n- [ ] Eggs');
+			expect(renderedNote.html).toContain('checkbox-label-unchecked">Beer');
+			expect(renderedNote.html).toContain('checkbox-label-checked">Milk');
+			expect(renderedNote.html).toContain('checkbox-label-unchecked">Eggs');
+			expect(!!renderedNote.pluginAssets).toBe(true);
+			expect(!!renderedNote.cssStrings).toBe(true);
+		}
+
+		{
+			const note = await Note.save({ });
+			await shim.attachFileToNote(note, testImagePath, null, { resizeLargeImages: 'never' });
+			const resource = (await Resource.all())[0];
+			const noteBody = (await Note.load(note.id)).body;
+			const renderedNote = await await command.execute(null, MarkupLanguage.Markdown, noteBody);
+			expect(renderedNote.html).toContain(`<div id="rendered-md"><p><img data-from-md data-resource-id="${resource.id}" src="joplin-content://note-viewer//Users/laurent/src/joplin/packages/lib/testing/../../app-cli/tests/test data/`);
+			expect(renderedNote.html).toContain(`/resources-1/${resource.id}.jpg?t=`);
+			expect(renderedNote.html).toContain('" title alt="photo.jpg" /></p>');
+		}
+	});
+
+});
diff --git a/packages/lib/shim.ts b/packages/lib/shim.ts
index 8cf494471..4b831904c 100644
--- a/packages/lib/shim.ts
+++ b/packages/lib/shim.ts
@@ -309,7 +309,7 @@ const shim = {
 	detectAndSetLocale: null as Function,
 
 	// eslint-disable-next-line @typescript-eslint/no-explicit-any -- Old code before rule was applied
-	attachFileToNote: async (_note: any, _filePath: string): Promise<NoteEntity> => {
+	attachFileToNote: async (_note: any, _filePath: string, _position: number, _options: any): Promise<NoteEntity> => {
 		throw new Error('Not implemented: attachFileToNote');
 	},