diff --git a/tests/@application/useCases/user/signup/signupUseCase.ts b/tests/@application/useCases/user/signup/signupUseCase.ts
index 9aaf222..e5c911f 100644
--- a/tests/@application/useCases/user/signup/signupUseCase.ts
+++ b/tests/@application/useCases/user/signup/signupUseCase.ts
@@ -1,17 +1,54 @@
+
 import { SignupUseCases } from '@application/useCases/user/signup/signUpUseCases'
 import { type IUserRepositoryContract } from '@domain/contracts/repositories/userRepository.contract'
-
+import { OS } from '@domain/user'
 import { mock, type MockProxy } from 'jest-mock-extended'
 
+export interface IFakerDTO {
+  email?: string
+  password?: string
+  ip?: string
+  acceptedTerms?: boolean
+  userAgent?: {
+    name?: string
+    version?: string
+    os?: keyof typeof OS
+    type?: string
+  }
+}
+
 describe('SignUpUseCase', () => {
+  const fakeDTO = (props: IFakerDTO) => {
+    return {
+      acceptedTerms: props?.acceptedTerms ?? true,
+      email: props?.email ?? 'johnjoe@example.com',
+      ip: props?.ip ?? '123.123.123.123',
+      password: props?.password ?? 'valid_password',
+      userAgent: {
+        name: props?.userAgent?.name ?? 'Mozilla/5.0',
+        os: props?.userAgent?.os ?? 'LINUX',
+        type: props?.userAgent?.type ?? 'Browser',
+        version: props?.userAgent?.version ?? '29.0.12.1.236'
+      }
+    }
+  }
+
   let userRepository: MockProxy<IUserRepositoryContract>
+  let signupUseCases: SignupUseCases
 
   beforeEach(() => {
     userRepository = mock()
+    signupUseCases = new SignupUseCases(userRepository)
   })
 
   it('Should be defined', () => {
-    const controller = new SignupUseCases(userRepository)
-    expect(controller).toBeDefined()
+    expect(signupUseCases).toBeDefined()
+  })
+
+  it('Shoudl return fails if not accept the terms', async () => {
+    const fakerDTO = fakeDTO({ acceptedTerms: false })
+    const result = await signupUseCases.execute(fakerDTO)
+    expect(result.isFailure).toBe(true)
+    expect(result.isSuccess).toBe(false)
   })
 })