From 01b2e864c1d180e729880962b0589acfe81d51f1 Mon Sep 17 00:00:00 2001
From: Cameron Fischer <fischer.cameron@gmail.com>
Date: Tue, 21 May 2024 17:02:37 -0400
Subject: [PATCH] Fixed issue with fakedome TW_Node inheritence (#8195)

---
 core/modules/utils/fakedom.js                |  4 +--
 editions/test/tiddlers/tests/test-fakedom.js | 27 ++++++++++++++++++++
 2 files changed, 29 insertions(+), 2 deletions(-)
 create mode 100644 editions/test/tiddlers/tests/test-fakedom.js

diff --git a/core/modules/utils/fakedom.js b/core/modules/utils/fakedom.js
index 0c1f5fa54..fb28465fe 100755
--- a/core/modules/utils/fakedom.js
+++ b/core/modules/utils/fakedom.js
@@ -42,7 +42,7 @@ var TW_TextNode = function(text) {
 	this.textContent = text + "";
 };
 
-Object.setPrototypeOf(TW_TextNode,TW_Node.prototype);
+Object.setPrototypeOf(TW_TextNode.prototype,TW_Node.prototype);
 
 Object.defineProperty(TW_TextNode.prototype, "nodeType", {
 	get: function() {
@@ -67,7 +67,7 @@ var TW_Element = function(tag,namespace) {
 	this.namespaceURI = namespace || "http://www.w3.org/1999/xhtml";
 };
 
-Object.setPrototypeOf(TW_Element,TW_Node.prototype);
+Object.setPrototypeOf(TW_Element.prototype,TW_Node.prototype);
 
 Object.defineProperty(TW_Element.prototype, "style", {
 	get: function() {
diff --git a/editions/test/tiddlers/tests/test-fakedom.js b/editions/test/tiddlers/tests/test-fakedom.js
new file mode 100644
index 000000000..7041f017b
--- /dev/null
+++ b/editions/test/tiddlers/tests/test-fakedom.js
@@ -0,0 +1,27 @@
+/*\
+title: test-fakedom.js
+type: application/javascript
+tags: [[$:/tags/test-spec]]
+
+Tests the fakedom that Tiddlywiki occasionally uses.
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+describe("fakedom tests", function() {
+
+	it("properly assigns nodeType based on DOM standards", function() {
+		// According to MDN, ELEMENT_NODE == 1 && TEXT_NODE == 3
+		// There are others, but currently they're not implemented in fakedom
+		expect($tw.fakeDocument.createElement("div").nodeType).toBe(1);
+		expect($tw.fakeDocument.createElement("div").ELEMENT_NODE).toBe(1);
+		expect($tw.fakeDocument.createTextNode("text").nodeType).toBe(3);
+		expect($tw.fakeDocument.createTextNode("text").TEXT_NODE).toBe(3);
+	});
+});
+
+})();