diff --git a/test/unit/services/AuthService.test.ts b/test/unit/services/AuthService.test.ts
new file mode 100644
index 0000000..1e81990
--- /dev/null
+++ b/test/unit/services/AuthService.test.ts
@@ -0,0 +1,45 @@
+import { UserRepository } from '../../../src/repositories/UserRepository';
+import { UserService } from '../../../src/services/UserService';
+import { AuthService } from '../../../src/services/AuthService';
+import { createMemoryDatabase } from '../../utils/CreateMemoryDatabase';
+import { UserSeed } from '../../utils/seeds/UserTestSeed';
+import { Connection } from 'typeorm';
+import { CreateUserDto } from '../../../src/dtos/UserDto';
+import { ReturnErrorType } from '../../../src/constants/ReturnErrorType';
+import { CreateTokenDto } from '../../../src/dtos/AuthDto';
+
+describe('AuthService', () => {
+  let db: Connection;
+  let userRepository: UserRepository;
+  let authService: AuthService;
+  let userService: UserService;
+
+  beforeAll(async () => {
+    db = await createMemoryDatabase();
+    userRepository = db.getCustomRepository(UserRepository);
+    await userRepository.save(UserSeed);
+    userService = new UserService(userRepository);
+    authService = new AuthService(userRepository);
+  });
+
+  afterAll(() => db.close());
+
+  const request = {
+    accessToken: 'accessToken',
+    refreshToken: 'refreshToken',
+  };
+
+  it('유효하지 않은 리프레시 토큰이 오면 토큰을 발급하지 않는다.', async () => {
+    const isUser = await authService.validateUserBySnsId(request.accessToken);
+
+    if (isUser) {
+      const accessToken = generateAccessToken(isUser);
+    } else {
+      expect(isUser).toBeNull();
+    }
+  });
+});
+
+function generateAccessToken(user: any) {
+  throw new Error('Function not implemented.');
+}