SpringBoot单元测试示例2

 package cn.coreqi.security.controller;

 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.http.MediaType;
 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.result.MockMvcResultMatchers;
 import org.springframework.test.web.servlet.setup.MockMvcBuilders;
 import org.springframework.web.context.WebApplicationContext;

 @RunWith(SpringRunner.class)    //如何运行测试用例，使用SpringRunner执行测试用例。
 @SpringBootTest //指定当前类为测试用例类
 @AutoConfigureMockMvc
 public class UserControllerTests {
     @Autowired
     private WebApplicationContext wac;

     @Autowired
     private MockMvc mockMvc;

     @Before //@Before标注的方法会在每一个测试用例执行之前执行
     public void setup(){
         mockMvc = MockMvcBuilders.webAppContextSetup(wac).build();
     }

     @Test
     public void whenQuerySuccess() throws Exception {
         //MockMvcRequestBuilders的get方法会模拟发出一个GET请求
         mockMvc.perform(MockMvcRequestBuilders.get("/users")
                 .param("usernmae","fanqi")
                 .param("size","15")
                 .param("page","3")
                 .param("sort","id,desc")
                 .contentType(MediaType.APPLICATION_JSON_UTF8))
                 .andExpect(MockMvcResultMatchers.status().isOk())    //期望服务器端返回的信息
                 .andExpect(MockMvcResultMatchers.jsonPath("$.length()").value(3))
                 .andReturn().getResponse().getContentAsString();
     }
 }