在SpringBoot应用中使用MockMVC进行单元测试示例_springboot 单页测试 mockmvcresultmatchers-优快云博客

本文链接：https://blog.youkuaiyun.com/lglspace/article/details/100750109

本文介绍如何在Spring Boot项目中使用Mockito和SpringRunner进行单元测试，通过示例代码展示了如何模拟服务方法并验证控制器返回的预期结果。

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确认依赖是否存在

 <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-test</artifactId>
    <scope>test</scope>
</dependency>

示例代码

import com.lifetimc.studylab.springboot.service.HelloService;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mockito;
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.boot.test.mock.mockito.MockBean;
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.MvcResult;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.result.MockMvcResultMatchers;

@RunWith(SpringRunner.class)
@SpringBootTest
@AutoConfigureMockMvc
public class StudylabSpringbootApplicationTests {
    @MockBean
    private HelloService helloService;
    @Autowired
    private MockMvc mockMvc;
    @Test
    public void contextLoads() {
        Mockito.when(
                helloService.getHelloName()
        ).thenReturn("world");
        try {
            MvcResult result = mockMvc.perform(
                    MockMvcRequestBuilders.get("/hello")
                            .contentType(MediaType.APPLICATION_JSON_UTF8)


            ).andExpect(MockMvcResultMatchers.status().isOk())
            .andExpect(MockMvcResultMatchers.content().string("hello world"))
            //.andDo(MockMvcResultHandlers.print())
            .andReturn();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}