如何处理测试用例中的异常

时间:2018-04-29 07:51:56

标签: spring-boot controller mockmvc springrunner

@RunWith(SpringRunner.class)
@WebMvcTest(MyController.class)
@ContextConfiguration(classes = Application.class)
public class MyControllerTest {

@Autowired
MockMvc mockMvc;
@MockBean
EmployeeService employeeService;
@MockBean
EmployeeRepo employeeRepo;
@MockBean
ValidationService validationService;

@Before
public  void setup(){
     emp=new Employee();
     objectMapper=new ObjectMapper();
     emp.setId("123");
     emp.setAge(100);
     emp.setName("pasam");

    System.out.println("Employee object before Test"+emp);
}
@Test
public void createEmp() throws Exception{
    mockMvc.perform(MockMvcRequestBuilders.post("/sample/insert")
        .accept(MediaType.APPLICATION_JSON_VALUE)
        .contentType(MediaType.APPLICATION_JSON_VALUE)
        .content(objectMapper.writeValueAsString(emp))).andExpect(status().isOk()).andDo(print());


}

}

@RestController
@RequestMapping("/sample")
public class MyController {

@Autowired
private EmployeeService employeeService;
@Autowired
private ValidationService validationService;

 @PostMapping(value = "/insert",consumes = MediaType.APPLICATION_JSON_VALUE)
public  ResponseEntity insertEmployee(@RequestBody Employee employee){
    validationService.validateEmp(employee);
    employeeService.create(employee);
    return ResponseEntity.ok().build();

}

}

public interface ValidationService {
  void validateEmp(Employee employee) ;
}

@Slf4j
@Service
public class ValidateServiceImpl implements ValidationService {

@Override
public void validateEmp(Employee employee) {
    if(employee.getAge()!=0){
       log.info("Age can not be 0");
    }
}

}

我正在尝试使用Spring Runner为Spring启动控制器编写测试用例,在我的控制器中我想验证员工对象,因为我已经编写了Validate Service接口.Above测试用例通过验证employee.while调试上面的测试case.debug指向不进入validationServiceImpl类。我想在验证Employee Object时抛出错误。如何在测试用例中处理异常。

1 个答案:

答案 0 :(得分:0)

实际上你嘲笑ValidationService依赖:

@MockBean
ValidationService validationService;

并且您没有指定模拟行为。因此,它允许在不抛出任何异常的情况下调用validatorService依赖项。它的工作原理是validateEmp()方法不能返回被测方法工作流所需的任何内容。

作为提醒,使用WebMvcTest注释的测试旨在专注于控制器测试,而不是服务测试。
您可以删除@MockBean注释以使validationService成为真正的实现,而不是模拟:

ValidationService validationService;

但请注意,测试单一ValidationService的更好方法是为它创建一个单元测试。

最后请注意,更好的方法是使用javax.validation API来验证输入。
您可以在Employee类中进行注释,以在字段和控制器中定义约束,以验证参数,例如:

import javax.validation.Valid;
 ...
@PostMapping(value = "/insert",consumes = MediaType.APPLICATION_JSON_VALUE)
public  ResponseEntity insertEmployee(@Valid @RequestBody Employee employe){
 //  validationService.validateEmp(employee); // Not required any longer
     employeeService.create(employee);
     return ResponseEntity.ok().build();    
 }