带有自定义异常的JUnit测试失败条件错误

Question

我正在为Rest控制器编写一个错误条件的测试用例，当我将expected exception设置为exception.class时，测试运行时没有错误。当我将预期的异常更改为CustomException.class时，测试失败并出现断言错误

下面是我的控制器类：

@RestController
public class CustomController<CustomFieldRequest customFieldRequest, CustomField customField> {
    @PutMapping(path = "/{customFieldId}",
            consumes = MediaType.APPLICATION_JSON_VALUE, produces = {MediaType.APPLICATION_JSON_VALUE, MediaType.APPLICATION_ATOM_XML_VALUE})
    public CustomField updateCustomField(@PathVariable String customFieldId, @RequestBody CustomFieldRequest customFieldRequest) throws CustomException {
        customFieldRequest.setAuthorId(getUser());
        customFieldRequest.setId(customFieldId);
        return CustomService.updateCustomeField(customFieldRequest);
    }
}

@Service
public class CustomServiceImpl implements CustomService {
    @Override
    public CustomField updateCustomeField(CustomFieldRequest customFieldRequest) throws CustomException {

    }
}

public class CustomException extends Exception {
    public CustomException(final String  message) {
        super(message);
    }

    public CustomException(final String  message, final Throwable cause) {
        super(message, cause);
    }
}

public class CustomControllerTest {
    private CustomService customService = Mockito.mock(CustomService.class);

    @Test(expected=Exception.class)
    public void updateCustomFieldThrowsException() throws CustomException {
        //exception.expect(Exception.class);
        CustomFieldRequest request = getRequest();

        when(customService.updateCustomeField(request)).thenThrow(Exception.class);
        //customController.updateCustomField(request.getId(), request);
    }
}

如上所述，如果我在测试中将预期的异常更改为CustomException.class，如下所示：

    @Test(expected=CustomException.class)
    public void updateCustomFieldThrowsException() throws CustomException {
        //exception.expect(Exception.class);
        CustomFieldRequest request = getRequest();

        when(customService.updateCustomeField(request)).thenThrow(CustomException.class);
        //customController.updateCustomField(request.getId(), request);
    }

我看到java.lang.AssertionError导致测试失败。我尝试了@Rule注释（如上所示，并进行了注释）。

Answer 1

您需要CustomException的默认构造函数，或者在测试中创建执行器，如下所示:New CustomException（“”）