作为TDD的一部分,我希望能够测试SpringBoot rest应用程序的每个部分。但是,我无法模拟外部呼叫。
应用程序结构
1.很少有休息端点在内部调用外部休息端点。
2.通过使用RestTemplate作为httpClient的本地http客户端来协调对外部端点的所有调用。
tab
}
即使我在client.exchange(RestTemplate.exchange)上设置了模拟,我仍然看到client.exchange返回的响应为null,而不是@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = WebEnvironment.MOCK, classes = TestDrivenDevelopmentWithJavaApplication.class)
public class TestDrivenDevelopmentWithJavaApplicationTests {
@Autowired
private WebApplicationContext webApplicationContext;
private MockMvc mockMvc;
@MockBean
private RestTemplate client;
@Before
public void setup() throws Exception {
mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).build();
Structure1Root category = new Structure1Root();
Category cat = new Category();
cat.setCategoryName("Test1");
cat.setDescription("Test");
category.setD(cat);
Mockito.when(client.exchange(
ArgumentMatchers.eq("https://services.odata.org/V2/Northwind/Northwind.svc/Products(1)?$format=json"),
ArgumentMatchers.eq(HttpMethod.GET), ArgumentMatchers.eq(null),
ArgumentMatchers.eq(Structure1Root.class)))
.thenReturn(new ResponseEntity<Structure1Root>(category, HttpStatus.OK));
}
@Test
public void testendpoint1() throws Exception {
mockMvc.perform(MockMvcRequestBuilders.get("/api/endpoint1?token=1").contentType(MediaType.APPLICATION_JSON))
.andExpect(content().string(org.hamcrest.Matchers.containsString("Test1")));
}
中指定的响应
控制器代码
thenReturn
最后是本地http客户端代码
@RestController
@RequestMapping(path = Endpoint.base)
public class Endpoint {
public static final String base = "/api";
@Autowired
MyHttpClient<Structure2Root> client;
@Autowired
MyHttpClient<Structure1Root> Cclient;
@GetMapping(path = "/endpoint1")
public ResponseEntity<Structure2Root> callEndpt1(@RequestParam String token) {
Response<Structure2Root> resp = client
.execute("https://services.odata.org/V2/Northwind/Northwind.svc/Products(1)?$format=json", Structure2Root.class);
return new ResponseEntity<Structure2Root>(resp.getResponse(), HttpStatus.OK);
}
@GetMapping(path = "/endpoint2")
public ResponseEntity<Structure1Root> callEndpt2(@RequestParam String token) {
Response<Structure1Root> resp = Cclient.execute(
"https://services.odata.org/V2/Northwind/Northwind.svc/Categories(1)?$format=json", Structure1Root.class);
return new ResponseEntity<Structure1Root>(resp.getResponse(),HttpStatus.OK);
}
}
这个@Service
public class MyHttpClient<O> {
@Autowired
RestTemplate client;
public MyHttpClient() {
// TODO Auto-generated constructor stub
}
public Response<O> execute(String url, Class<O> generic) {
ResponseEntity<O> resp = client.exchange(url, HttpMethod.GET, null, generic);
return new Response<O>(resp.getStatusCode(), resp.getBody());
}
}
是我打算在第一个代码块中拦截的
但是,似乎永远不会起作用,并且总是返回null。 Git Repo
致谢,
Veera
答案 0 :(得分:1)
您在嘲笑时使用了错误的对象。您应该使用Structure2Root而不是Structure1Root
下面是正确的测试类,可以正常工作。
package com.demo.samples.tdd;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
import com.demo.samples.tdd.responses.Product;
import com.demo.samples.tdd.responses.Structure2Root;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.ArgumentMatchers;
import org.mockito.Mockito;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
import org.springframework.boot.test.mock.mockito.MockBean;
import org.springframework.http.HttpMethod;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.client.RestTemplate;
import org.springframework.web.context.WebApplicationContext;
import com.demo.samples.tdd.responses.Category;
import com.demo.samples.tdd.responses.Structure1Root;
@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = WebEnvironment.MOCK, classes = TestDrivenDevelopmentWithJavaApplication.class)
public class TestDrivenDevelopmentWithJavaApplicationTests {
@Autowired
private WebApplicationContext webApplicationContext;
private MockMvc mockMvc;
@MockBean
private RestTemplate client;
@Before
public void setup() throws Exception {
mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).build();
// Structure1Root category = new Structure1Root();
// Category cat = new Category();
// cat.setCategoryName("Test1");
// cat.setDescription("Test");
// category.setD(cat);
//
// Mockito.when(client.exchange(
// ArgumentMatchers.eq("https://services.odata.org/V2/Northwind/Northwind.svc/Products(1)?$format=json"),
// ArgumentMatchers.eq(HttpMethod.GET), ArgumentMatchers.eq(null),
// ArgumentMatchers.eq(Structure1Root.class)))
// .thenReturn(new ResponseEntity<Structure1Root>(category, HttpStatus.OK));
Structure2Root category2 = new Structure2Root();
Product product = new Product();
product.setProductName("Test1");
product.setUnitPrice("1");
category2.setD(product);
Mockito.when(client.exchange(
ArgumentMatchers.eq("https://services.odata.org/V2/Northwind/Northwind.svc/Products(1)?$format=json"),
ArgumentMatchers.eq(HttpMethod.GET), ArgumentMatchers.eq(null),
ArgumentMatchers.eq(Structure2Root.class)))
.thenReturn(new ResponseEntity<Structure2Root>(category2, HttpStatus.OK));
}
@Test
public void testendpoint1() throws Exception {
mockMvc.perform(MockMvcRequestBuilders.get("/api/endpoint1?token=1").contentType(MediaType.APPLICATION_JSON))
.andExpect(content().string(org.hamcrest.Matchers.containsString("Test1")));
}
}