From 9dffb13be799d41a01cb75432bfc3ce064df9747 Mon Sep 17 00:00:00 2001
From: Hazelnoot <acomputerdog@gmail.com>
Date: Wed, 2 Apr 2025 09:47:49 -0400
Subject: [PATCH] fix test errors in MfmService.ts

---
 packages/backend/src/core/MfmService.ts  | 9 +++------
 packages/backend/test/unit/MfmService.ts | 4 ++--
 2 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/packages/backend/src/core/MfmService.ts b/packages/backend/src/core/MfmService.ts
index 9317da5b69..e51341ba0a 100644
--- a/packages/backend/src/core/MfmService.ts
+++ b/packages/backend/src/core/MfmService.ts
@@ -6,7 +6,7 @@
 import { URL } from 'node:url';
 import { Inject, Injectable } from '@nestjs/common';
 import * as parse5 from 'parse5';
-import { Window, XMLSerializer } from 'happy-dom';
+import { Window } from 'happy-dom';
 import { DI } from '@/di-symbols.js';
 import type { Config } from '@/config.js';
 import { intersperse } from '@/misc/prelude/array.js';
@@ -577,7 +577,7 @@ export class MfmService {
 		appendChildren(nodes, body);
 
 		// Remove the unnecessary namespace
-		const serialized = new XMLSerializer().serializeToString(body).replace(/^\s*<p xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\">/, '<p>');
+		const serialized = body.outerHTML;
 
 		happyDOM.close().catch(err => {});
 
@@ -848,10 +848,7 @@ export class MfmService {
 			body.appendChild(quote);
 		}
 
-		let result = new XMLSerializer().serializeToString(body);
-
-		// Remove the unnecessary namespace
-		result = result.replace(/^\s*<p xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\">/, '<p>');
+		let result = body.outerHTML;
 
 		if (inline) {
 			result = result.replace(/^<p>/, '').replace(/<\/p>$/, '');
diff --git a/packages/backend/test/unit/MfmService.ts b/packages/backend/test/unit/MfmService.ts
index 41480fdd51..e54c006a4f 100644
--- a/packages/backend/test/unit/MfmService.ts
+++ b/packages/backend/test/unit/MfmService.ts
@@ -24,13 +24,13 @@ describe('MfmService', () => {
 	describe('toHtml', () => {
 		test('br', () => {
 			const input = 'foo\nbar\nbaz';
-			const output = '<p><span>foo<br />bar<br />baz</span></p>';
+			const output = '<p><span>foo<br>bar<br>baz</span></p>';
 			assert.equal(mfmService.toHtml(mfm.parse(input)), output);
 		});
 
 		test('br alt', () => {
 			const input = 'foo\r\nbar\rbaz';
-			const output = '<p><span>foo<br />bar<br />baz</span></p>';
+			const output = '<p><span>foo<br>bar<br>baz</span></p>';
 			assert.equal(mfmService.toHtml(mfm.parse(input)), output);
 		});