Unit_Tests存在的问题

Question

我试图用MVC - Spring为我的控制器编写单元测试，实际上我是新手。我在pom/xml中增加了单元测试的依赖性。这是我的控制器：

@GetMapping("/showFormForUpdate/{id}")
    public String showFormForUpdate(@PathVariable ( value = "id") long id, Model model) {
        
        // get employee from the service
        Employee employee = employeeService.getEmployeeById(id);
        
        // set employee as a model attribute to pre-populate the form
        model.addAttribute("employee", employee);
        return "update_employee";
    }

以下是我所做的：

公共类ControllerTests {

@Test
void hello(){
    EmployeeController controller = new EmployeeController();//Arrange
    String response = controller.showFormForUpdate( long id);

}

}

How could i write a good Unit test for this?

Answer 1

Spring为控制器层切片测试提供了@WebMvcTest。(严格地说，这不是单元测试。但也没有进行综合测试。

https://spring.io/guides/gs/testing-web/

例如

@WebMvcTest
public class YourTest() {
    @Autowired
    private MockMvc mockMvc;

    @Test
    public void hello() {
       this.mockMvc
           .perform(get("/showFormForUpdate/111"))
           .andDo(print())
           .andExpect(status().isOk())     
    }
}