Merge pull request #1264 from aralroca/master

feat: [#1263] Add isEqualNode method

Author: capricorn86

packages/happy-dom/src/nodes/node/INode.ts

@@ -57,4 +57,12 @@ export default interface INode extends IEventTarget {
 	 * @returns True if the given node is equal to the current node, otherwise false.
 	 */
 	isSameNode(node: INode): boolean;
+
+	/**
+	 * Compares two nodes.
+	 *
+	 * @param node Node to compare.
+	 * @returns "true" if nodes are equal.
+	 */
+	isEqualNode(node: INode): boolean;
 }

packages/happy-dom/src/nodes/node/Node.ts

@@ -401,6 +401,17 @@ export default class Node extends EventTarget implements INode {
 		return oldChild;
 	}
 
+	/**
+	 * Compares two nodes.
+	 * Two nodes are equal if they have the same type, defining the same attributes, and so on.
+	 *
+	 * @param node  Node to compare.
+	 * @returns boolean - `true` if two nodes are equal.
+	 */
+	public isEqualNode(node: INode): boolean {
+		return NodeUtility.isEqualNode(this, node);
+	}
+
 	/**
 	 * Converts the node to a string.
 	 *

packages/happy-dom/test/nodes/node/Node.test.ts

@@ -646,6 +646,40 @@ describe('Node', () => {
 		});
 	});
 
+	describe('toEqualNode()', () => {
+		it('Returns "true" if the nodes are equal.', () => {
+			const div = document.createElement('div');
+			const span = document.createElement('span');
+			const text = document.createTextNode('text');
+			const comment = document.createComment('comment');
+
+			div.appendChild(span);
+			span.appendChild(text);
+			span.appendChild(comment);
+
+			const clone = div.cloneNode(true);
+
+			expect(div.isEqualNode(clone)).toBe(true);
+		});
+
+		it('Returns "false" if the nodes are not equal.', () => {
+			const div = document.createElement('div');
+			const span = document.createElement('span');
+			const text = document.createTextNode('text');
+			const comment = document.createComment('comment');
+
+			div.appendChild(span);
+			span.appendChild(text);
+			span.appendChild(comment);
+
+			const clone = div.cloneNode(true);
+
+			clone.appendChild(document.createElement('span'));
+
+			expect(div.isEqualNode(clone)).toBe(false);
+		});
+	});
+
 	describe('dispatchEvent()', () => {
 		it('Dispatches an event that is set to not bubble.', () => {
 			const child = document.createElement('span');