Merge pull request #1098 from Afsoon/task/1097-implements-symbol-toSt…

…ringTag

#1097@patch: Implements Symbol.toStringTag on EventTarget and AbortSignal.

packages/happy-dom/src/event/EventTarget.ts

@@ -19,6 +19,13 @@ export default abstract class EventTarget implements IEventTarget {
 		[k: string]: (IEventListenerOptions | null)[];
 	} = {};
 
+	/**
+	 * Return a default description for the EventTarget class.
+	 */
+	public get [Symbol.toStringTag](): string {
+		return 'EventTarget';
+	}
+
 	/**
 	 * Adds an event listener.
 	 *

packages/happy-dom/src/event/IEventTarget.ts

@@ -6,6 +6,11 @@ import IEventListenerOptions from './IEventListenerOptions.js';
  * Handles events.
  */
 export default interface IEventTarget {
+	/**
+	 * Return a default description for the EventTarget class.
+	 */
+	[Symbol.toStringTag]: string;
+
 	/**
 	 * Adds an event listener.
 	 *

packages/happy-dom/src/fetch/AbortSignal.ts

@@ -11,6 +11,13 @@ export default class AbortSignal extends EventTarget {
 	public readonly reason: string | null = null;
 	public onabort: ((this: AbortSignal, event: Event) => void) | null = null;
 
+	/**
+	 * Return a default description for the AbortSignal class.
+	 */
+	public get [Symbol.toStringTag](): string {
+		return 'AbortSignal';
+	}
+
 	/**
 	 * Aborts the signal.
 	 *

packages/happy-dom/test/event/EventTarget.test.ts

@@ -188,4 +188,12 @@ describe('EventTarget', () => {
 			expect(recievedEvent).toBe(null);
 		});
 	});
+
+	describe('[Symbol.toStringTag]', () => {
+		it('Returns EventTarget string.', () => {
+			const description = 'EventTarget';
+
+			expect(eventTarget[Symbol.toStringTag]).toBe(description);
+		});
+	});
 });

packages/happy-dom/test/fetch/AbortSignal.test.ts

@@ -28,4 +28,13 @@ describe('AbortSignal', () => {
 			expect(signal.reason).toBe(reason);
 		});
 	});
+
+	describe('AbortSignal[Symbol.toStringTag]', () => {
+		it('Returns AbortSignal string.', () => {
+			const description = 'AbortSignal';
+			const signal = new AbortSignal();
+
+			expect(signal[Symbol.toStringTag]).toBe(description);
+		});
+	});
 });