1、在【ruoyi-admin】的pom.xml下添加依赖

        <!-- 单元测试-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <scope>test</scope>
        </dependency>

2、update一下maven（确认单元测试已经添加进来）

3、添加在src下创建test模块（与main同级）

4.创建测试类

import com.aide.CMSApplication;
import com.aide.mqtt.parse.domain.DataFile;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;

@SpringBootTest(classes = CMSApplication.class, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
public class UnitTest {
	@Autowired
	private DataFile dataFile;

	@Test
	public void test1() {
		System.out.println(dataFile.toString());
	}
}

 5.测试结果