依赖安装

<!-- https://mvnrepository.com/artifact/junit/junit -->
<dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.13.2</version><scope>test</scope>
</dependency>

所有支持的注解都在包 org.junit.jupiter.api 下。

基本使用：

import org.junit.Assert;import org.junit.Test;
import org.springframework.boot.test.context.SpringBootTest;import javax.annotation.Resource;
import java.util.List;@SpringBootTest
public class SampleTest {@Resourceprivate UserMapper userMapper;@Testpublic void testSelect() {System.out.println(("----- selectAll method test ------"));List<User> userList = userMapper.selectList(null);Assert.assertEquals(5, userList.size());userList.forEach(System.out::println);}}