如何使用 Spring Hateoas 为 Resource Assembler 编写 mockito 测试用例？

Question

我正在尝试为下面的汇编程序编写单元测试，但我一直收到 无法通过 RequestContextHolder 找到当前请求。这是从 Spring MVC 处理程序调用的吗？。我想知道如何模拟资源创建？

@Component
    public class LoginResourceAssembler extends ResourceAssemblerSupport<User, ResourceSupport> {

        public LoginResourceAssembler() {

            super(User.class, ResourceSupport.class);
        }

        @Override
        public ResourceSupport toResource(User user) {

            ResourceSupport resource = new ResourceSupport();
            final String id = user.getId();

            resource.add(linkTo(MyAccountsController.class).slash(id).slash("accounts").withRel("accounts"));

            return resource;
        }

    }

Answer 1

我看到错误无法通过 RequestContextHolder 找到当前请求。这是从 Spring MVC 处理程序 调用的，因为我的测试 class 是用 @RunWith(MockitoJUnitRunner.class) 注释的，并且这没有注入控制器。为了修复这个错误，我用

注释了我的测试用例

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = Application.class)
@WebAppConfiguration

我的案例中的一个工作测试用例

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = Application.class)
@WebAppConfiguration

public class LoginResourceAssemblerTest {

    @Autowired
    private WebApplicationContext context;

    private MockMvc mockMvc;

    @InjectMocks
    private LoginResourceAssembler loginResourceAssembler;

    @Before
    public void setUp() {

        initMocks(this);
        this.mockMvc = MockMvcBuilders.webAppContextSetup(this.context).build();
    }

    @Test
    public void testToResource() {
        User user = new User();
        user.setId("1234");
        ResourceSupport resource = loginResourceAssembler.toResource(user);
        assertEquals(1,resource.getLinks().size());
        assertEquals("accounts",resource.getLinks().get(0).getRel());
                assertTrue(resource.getLinks().get(0).getHref().contains("accounts"));

    }

}

Answer 2

与其从普通单元测试更改为 IMO 集成测试（考虑到 spring 框架的依赖性），不如这样做：

@RunWith(MockitoJUnitRunner.class)
public class LoginResourceAssemblerTest {
    @InjectMocks
    private LoginResourceAssembler loginResourceAssembler;

    @Before
    public void setup() {
        RequestContextHolder.setRequestAttributes(new ServletRequestAttributes(new MockHttpServletRequest()));
    }

    @Test
    public void testToResource() {
        //...
    }
}

如何使用 Spring Hateoas 为 Resource Assembler 编写 mockito 测试用例？

How to write a mockito test case for ResourceAssembler with in Spring Hateos?

spring-mvc

mockito

spring-hateoas