@RunWith(SpringRunner.class)
@SpringBootTest
@AutoConfigureMockMvc
class UserServiceTest {
    @Autowired
    private MockMvc mockMvc;

    private UserService userService = mock(UserService.class);

    private User user = new User();

    @BeforeEach
    void setUp(){
        user.setUsername("user");
        user.setPassword("user123");
    }

    @Test
    void shouldReturnUser(){
        when(userService.findByUsername(anyString())).thenReturn(user);
        User u = userService.findByUsername("user");
        assertEquals(u,user);
        assertEquals("user",u.getUsername());
    }
}