From ad5dffbf7bdd86786b66f539ba141e1a09804348 Mon Sep 17 00:00:00 2001
From: David Ortner <david@ortner.se>
Date: Sat, 13 May 2023 14:17:52 +0200
Subject: [PATCH] #819@patch: Fixes issue where non-string values did not get
 converted to strings in CharacterData.data, CharacterData.nodeValue or
 CharacterData.textContent.

---
 .../happy-dom/src/nodes/character-data/CharacterData.ts     | 2 +-
 .../test/nodes/character-data/CharaterData.test.ts          | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/packages/happy-dom/src/nodes/character-data/CharacterData.ts b/packages/happy-dom/src/nodes/character-data/CharacterData.ts
index 5d039ca94..3ec738992 100644
--- a/packages/happy-dom/src/nodes/character-data/CharacterData.ts
+++ b/packages/happy-dom/src/nodes/character-data/CharacterData.ts
@@ -54,7 +54,7 @@ export default abstract class CharacterData extends Node implements ICharacterDa
 	 */
 	public set data(data: string) {
 		const oldValue = this._data;
-		this._data = data;
+		this._data = String(data);
 
 		if (this.isConnected) {
 			this.ownerDocument['_cacheID']++;
diff --git a/packages/happy-dom/test/nodes/character-data/CharaterData.test.ts b/packages/happy-dom/test/nodes/character-data/CharaterData.test.ts
index 3d78644cf..c18ef773c 100644
--- a/packages/happy-dom/test/nodes/character-data/CharaterData.test.ts
+++ b/packages/happy-dom/test/nodes/character-data/CharaterData.test.ts
@@ -37,6 +37,8 @@ describe('CharaterData', () => {
 			const node = <CharacterData>document.createComment('test');
 			node.data = 'new text';
 			expect(node.data).toBe('new text');
+			node.data = <string>(<unknown>0);
+			expect(node.data).toBe('0');
 		});
 	});
 
@@ -52,6 +54,8 @@ describe('CharaterData', () => {
 			const node = document.createTextNode('test');
 			node.nodeValue = 'new text';
 			expect(node.nodeValue).toBe('new text');
+			node.nodeValue = <string>(<unknown>0);
+			expect(node.nodeValue).toBe('0');
 		});
 	});
 
@@ -67,6 +71,8 @@ describe('CharaterData', () => {
 			const node = document.createComment('test');
 			node.textContent = 'new text';
 			expect(node.textContent).toBe('new text');
+			node.textContent = <string>(<unknown>0);
+			expect(node.textContent).toBe('0');
 		});
 	});