在 rest api 中测试内部服务器错误

Question

我想为我的 REST API Spring Boot 应用程序编写负面场景的单元测试用例。

控制器方法如下所示：

@RequestMapping(path = "/getcalc/srn/{srn}", method = RequestMethod.GET)
    public RestResponse<List<BookMarkMRPostProcessCalc>> fetchLatestPostProcessCalc(@PathVariable("srn") String srn) {
        try {
            List<BookMarkMRPostProcessCalc> calcList = bookMarkMrPostProcessCalcService.getPostProcessCalc(srn);
            return ResponseUtil.prepareRestResponse(calcList);
        } catch (BookMarkServiceException e) {
            return ResponseUtil.prepareErrorRestResponse(e.getMessage(), "", e.toString());
        }
    }

积极的情况很好。我想为BookMarkServiceException 发生或模拟它的场景编写测试用例。我们如何在junit中实现这一点？

Answer 1

一种方法如下：

@RunWith(SpringRunner.class)
public class YourClassNameTest { 

@InjectMocks
pricvate YourClassName yourClassName;

@Rule
public ExpectedException exceptionRule = ExpectedException.none();

@Test
public void fetchLatestPostProcessCalcTest(){
    expectedException.expect(BookMarkServiceException.class);
    yourClassName.fetchLatestPostProcessCalc("input that would generate error");
}