我在测试数据休息库时遇到了问题。我打电话给rest资源并检查它是否让我得到了正确的json。但是对于预填充数据我不想在内存db中使用,所以我模拟了存储库方法调用
@MockBean
private CommentRepository commentRepository;
并做了这个
given(commentRepository.findOne(1L)).willReturn(comment);
现在,在调用“/ comments / 1”时,我收到404错误,因此数据休息时没有公开我的存储库。主要问题是“我们如何模拟存储库方法从数据库中获取数据?”
我的考试班:
@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
public class CommentTest
{
@Autowired
private TestRestTemplate restTemplate;
@MockBean
private CommentRepository commentRepository;
@Before
public void setup()
{
Comment comment = new Comment();
comment.setText("description");
comment.setCommentId(1L);
given(commentRepository.findOne(1L)).willReturn(comment);
}
@Test
public void shouldCheckCommentGetResource()
{
ParameterizedTypeReference<Resource<Comment>> responseType = new ParameterizedTypeReference<Resource<Comment>>() {};
ResponseEntity<Resource<Comment>> responseEntity =
restTemplate.exchange("/comments/1", HttpMethod.GET, null, responseType, Collections
.emptyMap());
Comment actualResult = responseEntity.getBody().getContent();
assertEquals("description", actualResult.getText());
// more assertions
}
}
据我所知,使用MockBean注释我替换当前的存储库bean,它不会被数据休息公开,我们有没有办法将数据预先填充到db或模拟调用存储库方法?
答案 0 :(得分:0)
我不认为这是可能的。 Spring数据使用FactoryBean注册存储库bean - 在spring-data-rest情况下,这是EntityRepositoryFactoryBean
。所以你不能用mock来覆盖这些bean。
有关为什么模拟spring数据存储库无用的有趣读物,请参阅此答案https://stackoverflow.com/a/23442457/5371736
在同一个线程中,引用了一个项目,引入了对spring-data存储库的模拟支持 - https://stackoverflow.com/a/28643025/5371736
答案 1 :(得分:0)
有一种快速且肮脏的方法可以通过模仿来模拟Spring Data Rest存储库,以防万一其他人没有其他选择,但是除非绝对必要,否则请尽量避免这种情况
class MockRestRepositoryUtil {
public static <T> T mockRepository(Class<T> repositoryClass,
T springRepository) throws Exception {
Object springRepositoryImpl = AopTestUtils.getTargetObject(springRepository);
T mockRepository = mock(repositoryClass, delegatesTo(springRepositoryImpl));
Object springProxyHandler = Proxy.getInvocationHandler(springRepository);
ProxyFactory proxyFactory = extractProxyFactory(springProxyHandler);
proxyFactory.setTarget(mockRepository);
removeSpringDataAspects(proxyFactory);
return mockRepository;
}
private static ProxyFactory extractProxyFactory(Object springProxyHandler) throws Exception {
Field advisedField = springProxyHandler.getClass().getDeclaredField("advised");
advisedField.setAccessible(true);
return (ProxyFactory) advisedField.get(springProxyHandler);
}
private static void removeSpringDataAspects(ProxyFactory proxyFactory) {
Advisor[] advisors = proxyFactory.getAdvisors();
Arrays.stream(advisors)
.filter(advisor -> advisor.getAdvice().getClass().getPackage().getName()
.contains("org.springframework.data"))
.collect(toImmutableList())
.forEach(proxyFactory::removeAdvisor);
}
}