Question

我有一个GET API，它可以在控制器类中接受不同的参数。根据boolean参数，API应该返回不同的结果。我该如何编写相同的JUnit测试用例？

@CrossOrigin

@RequestMapping(value = "/api/brand/multi-get", method = RequestMethod.GET, consumes =
        MediaType.APPLICATION_FORM_URLENCODED_VALUE, produces =
        MediaType.APPLICATION_JSON_VALUE)

public ResponseDTO listBrands(@RequestParam(required = false) Integer start,
                              @RequestParam(required = false) Integer limit,
                              @RequestParam(required = false) Boolean show_rejected) {

    ResponseDTO responseDTO = new ResponseDTO();
    System.out.println("------------------");
    try {
        if (start == null) {
            start = 0;
        }
        if (limit == null) {
            limit = 50;
        } else if (1 <= limit && limit <= 250) {
            if (show_rejected) {
                List<Brand> brands = brandService.findAllBrands(start, limit);
                if (brands != null && !brands.isEmpty()) {
                    responseDTO.setData(brands);
                    responseDTO.setCode(ErrorCode.error_0);
                    responseDTO.setMessage("Brand list");
                    return responseDTO;
                } else {
                    responseDTO.setData(new ArrayList<>());
                    responseDTO.setCode(ErrorCode.error_0);
                    responseDTO.setMessage("Brand list");
                    return responseDTO;
                }
            } else {
                Page<Brand> brands = brandService.findAllActiveBrands(start, limit);

                if (brands != null && !brands.isEmpty()) {
                    responseDTO.setData(brands);
                    responseDTO.setCode(ErrorCode.error_0);
                    responseDTO.setMessage("Brand list");
                    return responseDTO;
                } else {
                    responseDTO.setData(new ArrayList<>());
                    responseDTO.setCode(ErrorCode.error_0);
                    responseDTO.setMessage("Brand list");
                    return responseDTO;
                }
            }
        } else {
            responseDTO.setCode(ErrorCode.error_1104);
            responseDTO.setMessage(ErrorCode.error_msg1104);
            return responseDTO;
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return responseDTO;
}

Answer 1

如果您正在使用spring框架并模拟测试，则spring-test库包含MockMvc和MockMvcRequestBuilders类，可用于测试任何API。您使用GET API，可以使用 public static MockHttpServletRequestBuilder get(String urlTemplate, Object... uriVars)中的MockMvcRequestBuilders方法

然后，您可以在public ResultActions perform(RequestBuilder requestBuilder)中使用MockMvc方法来启动服务。

Answer 2

调用GET API并断言以获取响应详细信息。

@Test
    public void postSimpleBody() throws Exception {
        Response response = server.newRequest("/path").request().buildPost(Entity.text("42")).invoke();
        assertEquals(Response.Status.OK.getStatusCode(), response.getStatus());
    }

Answer 3

所有你必须首先要与以下注释注释您的测试类：

@SpringBootTest
@RunWith(SpringRunner.class)
@AutoConfigureMockMvc

如果您具有身份验证，请添加：

@WithMockUser

自动装配的mockMvc执行请求：

@Autowired
private MockMvc mockMvc;

使用@MockBean嘲笑服务层：

@MockBean
private BrandService brandService;

和注释与测试中的@Test注释：

@Test
public void test_listBrands_when_something_do_something() {
}

然后使用Mockito在测试所涵盖的服务中模拟该方法：

List<Brand> mockBrands = new LinkedList<Brand>();
mockBrands.add(new Brand(/*...*/));

Mockito.when(brandService.findAllBrands(0, 25)).thenReturn(mockBrands);

使用类创建requestBuilder org.springframework.test.web.servlet.request.MockMvcRequestBuilders：

MockHttpServletRequestBuilder requestBuilder = MockMvcRequestBuilders.get("/api/brand/multi-get?start={0}&limit={1}&show_rejected={2}", 0, 25, true)
    .accept(MediaType.APPLICATION_JSON);

执行请求和断言使用类结果org.springframework.test.web.servlet.result.MockMvcResultMatchers：

mockMvc.perform(requestBuilder)
    .andExpect(MockMvcResultMatchers.status().isOk())
    .andExpect(MockMvcResultMatchers.content().contentType(MediaType.APPLICATION_JSON));

作为最后的尖端，添加此2个静态导入因此您的代码会更短：

import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;

然后，可以做get()，post()，status()，content()，等

这是完整的示例：

import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;

@SpringBootTest
@RunWith(SpringRunner.class)
@AutoConfigureMockMvc
public class MyApiControllerTests {
    @Autowired
    private MockMvc mockMvc;

    @MockBean
    private BrandService brandService;

    @Test
    public void test_listBrands_when_something_do_something() {
        //#region Mocks
        List<Brand> mockBrands = new LinkedList<Brand>();
        mockBrands.add(new Brand(/*...*/));

        Mockito.when(brandService.findAllBrands(0, 25)).thenReturn(mockBrands);
        //#endregion

        MockHttpServletRequestBuilder requestBuilder = get("/api/brand/multi-get?start={0}&limit={1}&show_rejected={2}", 0, 25, true).accept(MediaType.APPLICATION_JSON);

        mockMvc.perform(requestBuilder)
            .andExpect(status().isOk())
            .andExpect(content().contentType(MediaType.APPLICATION_JSON));

    }

}

如何编写GET API的JUnit测试用例？

3 个答案: