diff --git a/webapp/src/tests/Dashboard.test.js b/webapp/src/tests/Dashboard.test.js
index 0e278d3a..75a139ff 100644
--- a/webapp/src/tests/Dashboard.test.js
+++ b/webapp/src/tests/Dashboard.test.js
@@ -5,6 +5,17 @@ import Dashboard from '../pages/Dashboard';
 import ButtonEf from '../components/ButtonEf';
 import * as LogoutModule from '../components/game/Logout';
 
+jest.mock('react-i18next', () => ({
+  useTranslation: () => {
+    return {
+      t: (str) => str,
+      i18n: {
+        changeLanguage: () => new Promise(() => {}),
+      },
+    }
+  },
+}));
+
 describe('Dashboard component', () => {
   it('renders dashboard elements correctly', async () => {
     const { getByText } = render(<MemoryRouter><Dashboard/></MemoryRouter>);
diff --git a/webapp/src/tests/Game.test.js b/webapp/src/tests/Game.test.js
index 8b0b1f9a..7a728806 100644
--- a/webapp/src/tests/Game.test.js
+++ b/webapp/src/tests/Game.test.js
@@ -3,6 +3,17 @@ import { render, fireEvent } from '@testing-library/react';
 import { MemoryRouter } from 'react-router';
 import Game from '../pages/Game';
 
+jest.mock('react-i18next', () => ({
+  useTranslation: () => {
+    return {
+      t: (str) => str,
+      i18n: {
+        changeLanguage: () => new Promise(() => {}),
+      },
+    }
+  },
+}));
+
 describe('Game component', () => {
   test('renders without crashing', () => {
     render(<MemoryRouter><Game/></MemoryRouter>);
diff --git a/webapp/src/tests/Login.test.js b/webapp/src/tests/Login.test.js
index 6d0471da..7ab8c206 100644
--- a/webapp/src/tests/Login.test.js
+++ b/webapp/src/tests/Login.test.js
@@ -21,6 +21,16 @@ jest.mock('../components/game/Logout', () => ({
   logoutUser: jest.fn(),
 }));
 
+jest.mock('react-i18next', () => ({
+  useTranslation: () => {
+    return {
+      t: (str) => str,
+      i18n: {
+        changeLanguage: () => new Promise(() => {}),
+      },
+    }
+  },
+}));
 
 describe('Login Component', () => {
   beforeEach(() => {
diff --git a/webapp/src/tests/Logout.test.js b/webapp/src/tests/Logout.test.js
index 56e8dfa4..2af97c44 100644
--- a/webapp/src/tests/Logout.test.js
+++ b/webapp/src/tests/Logout.test.js
@@ -4,6 +4,17 @@ import {logoutUser} from "components/game/Logout";
 
 const mockAxios = new MockAdapter(axios);
 
+jest.mock('react-i18next', () => ({
+    useTranslation: () => {
+      return {
+        t: (str) => str,
+        i18n: {
+          changeLanguage: () => new Promise(() => {}),
+        },
+      }
+    },
+  }));
+
 describe("Logout User tests", () => {
     beforeEach(() => {
         sessionStorage.clear();
diff --git a/webapp/src/tests/Questions.test.js b/webapp/src/tests/Questions.test.js
index 7fe6e37a..cf96ca75 100644
--- a/webapp/src/tests/Questions.test.js
+++ b/webapp/src/tests/Questions.test.js
@@ -4,6 +4,17 @@ import axios, { HttpStatusCode } from "axios";
 
 const mockAxios = new MockAdapter(axios);
 
+jest.mock('react-i18next', () => ({
+    useTranslation: () => {
+      return {
+        t: (str) => str,
+        i18n: {
+          changeLanguage: () => new Promise(() => {}),
+        },
+      }
+    },
+  }));
+
 describe("Question Service tests", () => {
     describe("getQuestion function", () => {
         beforeEach(() => {
diff --git a/webapp/src/tests/Results.test.js b/webapp/src/tests/Results.test.js
index 47de497f..29b668c3 100644
--- a/webapp/src/tests/Results.test.js
+++ b/webapp/src/tests/Results.test.js
@@ -11,6 +11,17 @@ jest.mock('react-router-dom', () => ({
   }),
 }));
 
+jest.mock('react-i18next', () => ({
+    useTranslation: () => {
+      return {
+        t: (str) => str,
+        i18n: {
+          changeLanguage: () => new Promise(() => {}),
+        },
+      }
+    },
+  }));
+
 describe('Results Component', () => {
     test('renders results with correct answers', () => {
         const { getByText, getByTestId } = render(
diff --git a/webapp/src/tests/Root.test.js b/webapp/src/tests/Root.test.js
index d2687f01..b74681f2 100644
--- a/webapp/src/tests/Root.test.js
+++ b/webapp/src/tests/Root.test.js
@@ -3,6 +3,17 @@ import { render, screen, fireEvent, getByTestId } from '@testing-library/react';
 import { MemoryRouter, createMemoryRouter } from 'react-router';
 import Root from '../pages/Root';
 
+jest.mock('react-i18next', () => ({
+  useTranslation: () => {
+    return {
+      t: (str) => str,
+      i18n: {
+        changeLanguage: () => new Promise(() => {}),
+      },
+    }
+  },
+}));
+
 describe('Root component', () => {
 
   it('renders WIQ-EN2B heading', () => {
diff --git a/webapp/src/tests/Rules.test.js b/webapp/src/tests/Rules.test.js
index 8218b94f..15299730 100644
--- a/webapp/src/tests/Rules.test.js
+++ b/webapp/src/tests/Rules.test.js
@@ -3,6 +3,17 @@ import { render } from '@testing-library/react';
 import { MemoryRouter } from 'react-router';
 import Rules from '../pages/Rules';
 
+jest.mock('react-i18next', () => ({
+  useTranslation: () => {
+    return {
+      t: (str) => str,
+      i18n: {
+        changeLanguage: () => new Promise(() => {}),
+      },
+    }
+  },
+}));
+
 describe('Rules component', () => {
   it('renders rules elements correctly', async () => {
     const { getByText, getByTestId } = render(<MemoryRouter><Rules/></MemoryRouter>);
diff --git a/webapp/src/tests/Signup.test.js b/webapp/src/tests/Signup.test.js
index 378150ec..6a63602c 100644
--- a/webapp/src/tests/Signup.test.js
+++ b/webapp/src/tests/Signup.test.js
@@ -1,5 +1,5 @@
 import React from 'react';
-import { render, fireEvent, getByTestId, getAllByTestId, waitFor } from '@testing-library/react';
+import { render, fireEvent, getByTestId, getAllByTestId, waitFor, act } from '@testing-library/react';
 import { MemoryRouter } from 'react-router';
 import Signup from '../pages/Signup';
 import * as AuthUtils from '../components/auth/AuthUtils';
@@ -9,6 +9,17 @@ jest.mock('../components/auth/AuthUtils', () => ({
   register: jest.fn(),
 }));
 
+jest.mock('react-i18next', () => ({
+  useTranslation: () => {
+    return {
+      t: (str) => str,
+      i18n: {
+        changeLanguage: () => new Promise(() => {}),
+      },
+    }
+  },
+}));
+
 describe('Signup Component', () => {
 
   it('renders form elements correctly', () => {
@@ -84,8 +95,9 @@ describe('Signup Component', () => {
 
     // Asegúrate de que la función de navegación se haya llamado
     expect(registerSpy.mock.calls[0][1]).toBeInstanceOf(Function); // Esto verifica que se pase una función como segundo argumento
-    registerSpy.mock.calls[0][1](); // Llama a la función de navegación
-
+    act(() => {
+      registerSpy.mock.calls[0][1](); // Llama a la función de navegación
+    })
     // Verifica que la navegación se haya realizado correctamente
     // Puedes agregar más expectativas aquí según tus necesidades
 
@@ -115,7 +127,9 @@ describe('Signup Component', () => {
 
     // Verifica que la función de manejo de error se haya llamado
     expect(registerSpy.mock.calls[0][2]).toBeInstanceOf(Function); // Verifica que se pase una función como tercer argumento
-    registerSpy.mock.calls[0][2](); // Llama a la función de manejo de error
+    act(() => {
+      registerSpy.mock.calls[0][2](); // Llama a la función de manejo de error
+    });
 
     // Verifica que la variable de estado `hasError` se haya establecido correctamente
     // Puedes agregar más expectativas aquí según tus necesidades