如何使用springboot编写rest controller、service和dao层的junit

Question

如何为RestController、Service和DAO 层编写JUnit测试用例？我试过了MockMvc@RunWith(SpringRunner.class)public class EmployeeControllerTest {    private MockMvc mockMvc;    private static List<Employee> employeeList;    @InjectMocks    EmployeeController employeeController;    @Mock    EmployeeRepository employeeRepository;    @Test    public void testGetAllEmployees() throws Exception {        Mockito.when(employeeRepository.findAll()).thenReturn(employeeList);        assertNotNull(employeeController.getAllEmployees());        mockMvc.perform(MockMvcRequestBuilders.get("/api/v1/employees"))                .andExpect(MockMvcResultMatchers.status().isOk());    }如何验证其余控制器和其他层内的CRUD方法？

Answer 1

您可以使用服务层模拟DAO 层@RunWith(MockitoJUnitRunner.class)组件来进行单元测试。你不需要它。SpringRunner.class

    @RunWith(MockitoJUnitRunner.class)

    public class GatewayServiceImplTest {

        @Mock

        private GatewayRepository gatewayRepository;

        @InjectMocks

        private GatewayServiceImpl gatewayService;

        @Test

        public void create() {

            val gateway = GatewayFactory.create(10);

            when(gatewayRepository.save(gateway)).thenReturn(gateway);

            gatewayService.create(gateway);

        }

    }

您可以用于@DataJpaTest与DAO 层进行集成测试

    @RunWith(SpringRunner.class)

    @DataJpaTest

    public class GatewayRepositoryIntegrationTest {

        @Autowired

        private TestEntityManager entityManager;

        @Autowired

        private GatewayRepository gatewayRepository;

        // write test cases here     

    }