fix: update error formatting to use constructor name in AppSyncGraphQLResolver

Author: arnabrahman

packages/event-handler/src/appsync-graphql/AppSyncGraphQLResolver.ts

@@ -398,7 +398,7 @@ class AppSyncGraphQLResolver extends Router {
   #formatErrorResponse(error: unknown) {
     if (error instanceof Error) {
       return {
-        error: `${error.name} - ${error.message}`,
+        error: `${error.constructor.name} - ${error.message}`,
       };
     }
     return {

packages/event-handler/tests/unit/appsync-graphql/AppSyncGraphQLResolver.test.ts

@@ -10,26 +10,9 @@ import {
 import type { ErrorClass } from '../../../src/types/appsync-graphql.js';
 import { onGraphqlEventFactory } from '../../helpers/factories.js';
 
-class ValidationError extends Error {
-  constructor(message: string) {
-    super(message);
-    this.name = 'ValidationError';
-  }
-}
-
-class NotFoundError extends Error {
-  constructor(message: string) {
-    super(message);
-    this.name = 'NotFoundError';
-  }
-}
-
-class DatabaseError extends Error {
-  constructor(message: string) {
-    super(message);
-    this.name = 'DatabaseError';
-  }
-}
+class ValidationError extends Error {}
+class NotFoundError extends Error {}
+class DatabaseError extends Error {}
 
 describe('Class: AppSyncGraphQLResolver', () => {
   beforeEach(() => {