mockito - 我的控制器代码无法从 MockMvc 获取请求中访问,我总是收到 404
问题描述
我正在尝试模拟我的控制器并为其编写测试用例。但是当我尝试调试 Test 类时,控件没有进入我的 Controller 类。我不确定我在这里做错了什么。
请帮助我解决这个问题,因为我被困在这个问题上几乎超过 3 个小时。
我的服务类
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.bnpp.leavemanagement.dao.DepartmentRepository;
import com.bnpp.leavemanagement.model.DepartmentModel;
@Service
public class DepartmentService
{
@Autowired
DepartmentRepository depRepo;
public List<DepartmentModel> listDepartment = new ArrayList<>();
public List<DepartmentModel> getAllDepartments()
{
List<DepartmentModel> allDepartment = depRepo.findAll();
return allDepartment;
}
public DepartmentModel fetchDepartmentById( int id)
{
DepartmentModel depDetail = null;
try
{
depDetail = depRepo.findById(Long.valueOf(id)).get();
}
catch(Exception ex)
{
depDetail = null;
}
return depDetail;
}
public DepartmentModel addDepartment(DepartmentModel depDetail)
{
DepartmentModel depExists = null;
if (listDepartment.size() > 0)
{
depExists = listDepartment.stream()
.filter(d -> d.getName().equalsIgnoreCase(depDetail.getName()))
.findFirst()
.orElse(null);
}
//Below condition is to restrict duplicate department creation
if(depExists == null)
{
depRepo.save(depDetail);
listDepartment.add(depDetail);
}
else
{
return null;
}
return depDetail;
}
public DepartmentModel updateDepartment(DepartmentModel depDetail)
{
DepartmentModel depUpdate = null;
try
{
depUpdate = depRepo.findById(depDetail.getId()).get();
depUpdate.setName(depDetail.getName());
depRepo.save(depUpdate);
}
catch(Exception ex)
{
depUpdate = null;
}
return depUpdate;
}
public DepartmentModel deleteDepartment(DepartmentModel depDetail)
{
try
{
depRepo.deleteById(depDetail.getId());
}
catch(Exception ex)
{
return null;
}
return depDetail;
}
}
我的测试班
import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
import java.util.ArrayList;
import java.util.List;
import org.hamcrest.Matchers;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.junit.jupiter.MockitoExtension;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
import org.springframework.boot.test.mock.mockito.MockBean;
import org.springframework.context.annotation.Description;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.web.WebAppConfiguration;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
import org.springframework.web.context.WebApplicationContext;
import com.bnpp.leavemanagement.controller.DepartmentController;
import com.bnpp.leavemanagement.model.DepartmentModel;
import com.bnpp.leavemanagement.service.DepartmentService;
@ExtendWith(MockitoExtension.class)
@WebMvcTest(DepartmentController.class)
@ContextConfiguration(classes = com.bnpp.leavemanagementsystem.LeaveManagementSystemApplicationTests.class)
public class DepartmentControllerTest {
@MockBean
DepartmentService depService;
@Autowired
private MockMvc mockMvc;
@InjectMocks
DepartmentController departmentController;
@Autowired
private WebApplicationContext webApplicationContext;
@Test
@Description("Should return a list of DepartmentModel objects when called")
void shouldReturnListOfDepartmentModel() throws Exception
{
DepartmentModel depModel = new DepartmentModel();
depModel.setId(1L);
depModel.setName("Mock");
List<DepartmentModel> listDepmodel = new ArrayList<>();
listDepmodel.add(depModel);
Mockito.when(depService.getAllDepartments()).thenReturn(listDepmodel);
mockMvc.perform(MockMvcRequestBuilders.get("/department"))
.andDo(print())
.andExpect(status().isOk())
.andExpect(MockMvcResultMatchers.jsonPath("$.size()", Matchers.is(1)))
.andExpect(MockMvcResultMatchers.jsonPath("$[0].id").value(1))
.andExpect(MockMvcResultMatchers.jsonPath("$[0].name").value("Mock"));
}
}
我的控制器类
package com.bnpp.leavemanagement.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;
import com.bnpp.leavemanagement.dao.DepartmentRepository;
import com.bnpp.leavemanagement.model.DepartmentModel;
import com.bnpp.leavemanagement.service.DepartmentService;
@RestController
public class DepartmentController
{
@Autowired
DepartmentService depService;
@GetMapping("/department")
public ResponseEntity<List<DepartmentModel>> getDepartments()
{
List<DepartmentModel> allDepartment = depService.getAllDepartments();
if(allDepartment.size() == 0)
{
return new ResponseEntity( HttpStatus.NOT_FOUND);
}
return new ResponseEntity( allDepartment, HttpStatus.OK);
}
@GetMapping("/department/{id}")
public ResponseEntity<DepartmentModel> fetchDepartmentById(@PathVariable("id") int id)
{
DepartmentModel resDep = depService.fetchDepartmentById(id);
if(resDep == null)
{
return new ResponseEntity(HttpStatus.NOT_FOUND);
}
else
{
return new ResponseEntity( resDep, HttpStatus.OK);
}
}
@PostMapping("/department/create")
public ResponseEntity<DepartmentModel> createDepartment(@RequestBody DepartmentModel depNew)
{
DepartmentModel resDep = depService.addDepartment(depNew);
if(resDep == null)
{
return new ResponseEntity(HttpStatus.EXPECTATION_FAILED);
}
else
{
return new ResponseEntity( resDep, HttpStatus.CREATED);
}
}
@PutMapping("/department/update")
public ResponseEntity<DepartmentModel> updateDepartment(@RequestBody DepartmentModel depNew)
{
DepartmentModel resDep = depService.updateDepartment(depNew);
if(resDep == null)
{
return new ResponseEntity(HttpStatus.NOT_FOUND);
}
else
{
return new ResponseEntity( resDep, HttpStatus.OK);
}
}
@DeleteMapping("/department/delete")
public ResponseEntity<DepartmentModel> deleteDepartment(@RequestBody DepartmentModel depDel)
{
DepartmentModel resDep = depService.deleteDepartment(depDel);
if(resDep == null)
{
return new ResponseEntity(HttpStatus.NOT_FOUND);
}
else
{
return new ResponseEntity(HttpStatus.OK);
}
}
}
解决方案
MockMvc
使用的最小可行测试设置@WebMvcTest
如下:
@WebMvcTest(DepartmentController.class)
class DepartmentControllerTest {
@MockBean
DepartmentService depService;
@Autowired
private MockMvc mockMvc;
@Test
@Description("Should return a list of DepartmentModel objects when called")
void shouldReturnListOfDepartmentModel() throws Exception {
DepartmentModel depModel = new DepartmentModel();
depModel.setId(1L);
depModel.setName("Mock");
List<DepartmentModel> listDepmodel = new ArrayList<>();
listDepmodel.add(depModel);
Mockito.when(depService.getAllDepartments()).thenReturn(listDepmodel);
mockMvc.perform(MockMvcRequestBuilders.get("/department"))
.andDo(print())
.andExpect(status().isOk())
.andExpect(MockMvcResultMatchers.jsonPath("$.size()", Matchers.is(1)))
.andExpect(MockMvcResultMatchers.jsonPath("$[0].id").value(1))
.andExpect(MockMvcResultMatchers.jsonPath("$[0].name").value("Mock"));
}
}
解释:
@InjectMocks
没有必要,因为@MockBean
您DepartmentService
要向 Spring TestContext 添加模拟版本,并且 Spring DI 的机制会将其注入到您的DepartmentController
@ExtendWith(SpringExtension.class)
也是多余的,因为元注释@WebMvcTest
已经激活了SpringExtension.class
您不需要
@ContextConfiguration
在这里@WebMvcTest
注意检测您的 Spring Boot 入口点类并启动切片上下文
如果测试仍然不起作用,请添加所有依赖项、构建代码的方式以及主 Spring Boot 类(用 注释@SpringBootApplication
)。
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