diff --git a/e2e/example.e2e.config.ts b/e2e/example.e2e.config.ts
index 2f8133fa..df8a0864 100644
--- a/e2e/example.e2e.config.ts
+++ b/e2e/example.e2e.config.ts
@@ -1,6 +1,6 @@
 /**
  * This is an example configuration file for e2e tests, where you must add your credentials and other personal settings.
- * Inside the e2e directory, create a file with the name: e2e.config.ts. It is already added to gitignore.
+ * Inside the e2e directory, create a file with the name: e2e.config.ts.
  * Copy the contents of the example file, add it to the e2e.config.ts file and add your personal settings.
  */
 
diff --git a/e2e/preference/create.spec.ts b/e2e/preference/create.spec.ts
index 55b628d4..46b47544 100644
--- a/e2e/preference/create.spec.ts
+++ b/e2e/preference/create.spec.ts
@@ -3,7 +3,7 @@ import MercadoPago, { Preference } from '@src/index';
 import { config } from '../e2e.config';
 
 describe('Preference IT, create', () => {
-	test('should create a request with success', async () => {
+	test('should create Preference and match response object', async () => {
 
 		const client = new MercadoPago({  accessToken: config.access_token, options: { timeout: 5000 } });
 		const preference = new Preference(client);
@@ -12,38 +12,21 @@ describe('Preference IT, create', () => {
 			body: {
 				items: [
 					{
-						'id': '4567',
-						'category_id': 'car_electronics',
-						'currency_id': 'BRL',
-						'description': 'Dummy create',
-						'picture_url': 'https://http2.mlstatic.com/D_NQ_NP_887467-MLA71526269815_092023-F.jpg',
-						'title': 'Dummy Title',
-						'quantity': 1,
-						'unit_price': 10
+						id: '4567',
+						category_id: 'car_electronics',
+						currency_id: 'BRL',
+						description: 'Dummy create',
+						picture_url: 'https://http2.mlstatic.com/D_NQ_NP_887467-MLA71526269815_092023-F.jpg',
+						title: 'Dummy Title',
+						quantity: 1,
+						unit_price: 10
 					}
 				],
 			}
 		};
 
 		const response = await preference.create(preferenceRequest);
-
-		expect(response).toEqual(expect.objectContaining({
-			id: expect.any(String),
-		}));
-		expect(response).toHaveProperty('items',
-			[
-				{
-					'id': '4567',
-					'category_id': 'car_electronics',
-					'currency_id': 'BRL',
-					'description': 'Dummy create',
-					'picture_url': 'https://http2.mlstatic.com/D_NQ_NP_847188-MLB72078771649_102023-F.jpg',
-					'title': 'Dummy Title',
-					'quantity': 1,
-					'unit_price': 10
-				}
-			],
-		);
+		expect(response.items[0].title).toBe(preferenceRequest.body.items[0].title);
 		expect(response).toEqual(expect.objectContaining({
 			init_point: expect.any(String),
 			client_id: expect.any(String),
@@ -53,6 +36,15 @@ describe('Preference IT, create', () => {
 			sandbox_init_point: expect.any(String),
 			site_id: expect.any(String),
 		}));
+		expect(response.items[0]).toEqual(expect.objectContaining({
+			id: expect.any(String),
+			category_id: expect.any(String),
+			currency_id: expect.any(String),
+			description: expect.any(String),
+			picture_url: expect.any(String),
+			title: expect.any(String),
+			quantity: expect.any(Number),
+			unit_price: expect.any(Number),
+		}));
 	});
-
 });
diff --git a/e2e/preference/get.spec.ts b/e2e/preference/get.spec.ts
index abc9ebb9..390c9801 100644
--- a/e2e/preference/get.spec.ts
+++ b/e2e/preference/get.spec.ts
@@ -11,10 +11,10 @@ describe('Preference IT, get', () => {
 			body: {
 				items: [
 					{
-						'id': '4567',
-						'title': 'Dummy Title Create',
-						'quantity': 1,
-						'unit_price': 10
+						id: '4567',
+						title: 'Dummy Title Create',
+						quantity: 1,
+						unit_price: 10
 					}
 				], }
 		};
@@ -22,18 +22,6 @@ describe('Preference IT, get', () => {
 
 		const response = await preference.get({ preferenceId: request.id });
 		expect(response).toHaveProperty('id', request.id);
-		expect(response).toHaveProperty('items',
-			[
-				{
-					'id': '4567',
-					'category_id': '',
-					'currency_id': 'BRL',
-					'description': '',
-					'title': 'Dummy Title Create',
-					'quantity': 1,
-					'unit_price': 10
-				}
-			]);
 		expect(response).toEqual(expect.objectContaining({
 			init_point: expect.any(String),
 			client_id: expect.any(String),
@@ -43,6 +31,15 @@ describe('Preference IT, get', () => {
 			sandbox_init_point: expect.any(String),
 			site_id: expect.any(String),
 		}));
+		expect(response.items[0]).toEqual(expect.objectContaining({
+			id: expect.any(String),
+			category_id: expect.any(String),
+			currency_id: expect.any(String),
+			description: expect.any(String),
+			title: expect.any(String),
+			quantity: expect.any(Number),
+			unit_price: expect.any(Number),
+		}));
 	});
 
 });
diff --git a/e2e/preference/update.spec.ts b/e2e/preference/update.spec.ts
index 95e8c650..4817d053 100644
--- a/e2e/preference/update.spec.ts
+++ b/e2e/preference/update.spec.ts
@@ -12,10 +12,10 @@ describe('Preference IT, update', () => {
 			body: {
 				items: [
 					{
-						'id': '4567',
-						'title': 'Dummy Title Create',
-						'quantity': 1,
-						'unit_price': 10
+						id: '4567',
+						title: 'Dummy Title Create',
+						quantity: 1,
+						unit_price: 10
 					}
 				],
 			}
@@ -27,10 +27,10 @@ describe('Preference IT, update', () => {
 			updatePreferenceRequest: {
 				items: [
 					{
-						'id': '4567',
-						'title': 'Dummy Title Update',
-						'quantity': 1,
-						'unit_price': 10
+						id: '4567',
+						title: 'Dummy Title Update',
+						quantity: 1,
+						unit_price: 10
 					}
 				],
 			}
@@ -40,18 +40,7 @@ describe('Preference IT, update', () => {
 		expect(response).toEqual(expect.objectContaining({
 			id: request.id,
 		}));
-		expect(response).toHaveProperty('items',
-			[
-				{
-					'id': '4567',
-					'category_id': '',
-					'currency_id': 'BRL',
-					'description': '',
-					'title': 'Dummy Title Update',
-					'quantity': 1,
-					'unit_price': 10
-				}
-			]);
+		expect(response.items[0].title).toBe(updateRequest.updatePreferenceRequest.items[0].title);
 		expect(response).toEqual(expect.objectContaining({
 			init_point: expect.any(String),
 			client_id: expect.any(String),
@@ -61,6 +50,15 @@ describe('Preference IT, update', () => {
 			sandbox_init_point: expect.any(String),
 			site_id: expect.any(String),
 		}));
+		expect(response.items[0]).toEqual(expect.objectContaining({
+			id: expect.any(String),
+			category_id: expect.any(String),
+			currency_id: expect.any(String),
+			description: expect.any(String),
+			title: expect.any(String),
+			quantity: expect.any(Number),
+			unit_price: expect.any(Number),
+		}));
 	});
 
 });