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SpringBoot2整合Junit4和Junit5

SpringBoot2整合Junit4和Junit5

一、概述

(一)SpringBoot版本、IDEA、Junit的版本对应

https://blog.csdn.net/weixin_44457062/article/details/122950232#:~:text=Spring%20Boot%20%E5%9C%A8,2.4.0%20%E7%89%88%E6%9C%AC%E4%B9%8B%E5%90%8E%EF%BC%8C%E4%BE%BF%E4%B8%8D%E5%86%8D%E5%85%BC%E5%AE%B9Junit4%E3%80%82%20%E6%89%80%E4%BB%A5%EF%BC%8C%E5%A6%82%E6%9E%9C%E6%AD%A4%E6%97%B6%E4%BD%BF%E7%94%A8Idea%E7%89%88%E6%9C%AC%E5%9C%A82017.3.5%E4%B9%8B%E5%89%8D%E7%89%88%E6%9C%AC%EF%BC%8C%E9%82%A3%E4%B9%88%E7%A8%8B%E5%BA%8F%E4%B8%AD%E5%8F%AA%E8%83%BD%E5%BC%95%E7%94%A8Junit5%E3%80%82

(二)官方文档

SpringBoot所有版本官方文档:https://docs.spring.io/spring-boot/docs/

(三)演示环境

Maven 3.6.3
Spring Boot 2.3.4.RELEASE(直接继承spring-boot-starter-parent:2.3.4.RELEASE)
JUnit 4.13.1(自己选的比较新的Junit4依赖)
Junit 5.6.2(spring-boot-starter-test:2.3.4.RELEASE默认的)

二、整合JUnit5

(一)spring-boot-starter-test:2.3.4.RELEASE默认的依赖

The spring-boot-starter-test “Starter” (in the test scope) contains the following provided libraries:
1、JUnit 5 (including the vintage engine for backward compatibility with JUnit 4): The de-facto standard for unit testing Java applications.
2、Spring Test & Spring Boot Test: Utilities and integration test support for Spring Boot applications.
3、AssertJ: A fluent assertion library.
4、Hamcrest: A library of matcher objects (also known as constraints or predicates).
5、Mockito: A Java mocking framework.
6、JSONassert: An assertion library for JSON.
7、JsonPath: XPath for JSON.

(二)引入依赖

The starter also brings the vintage engine so that you can run both JUnit 4 and JUnit 5 tests. If you have migrated your tests to JUnit 5, you should exclude JUnit 4 support, as shown in the following example:(大概意思就是如果只使用JUnit5就要排除掉排除JUnit4支持vintage engine,不排除就是兼容JUnit4和JUnit5的。
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-test</artifactId>
    <scope>test</scope>
    <exclusions>
        <exclusion>
            <groupId>org.junit.vintage</groupId>
            <artifactId>junit-vintage-engine</artifactId>
        </exclusion>
    </exclusions>
</dependency>

(三)测试类代码

package com.online.store.dao;

import com.online.store.product.ProductApplication;
import com.online.store.product.dao.CategoryDao;
import com.online.store.product.entity.CategoryEntity;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
import javax.annotation.Resource;
import java.util.List;

//ProductApplication是我的主启动类,换成自己的就可以
@SpringBootTest(classes = ProductApplication.class)
public class CategoryDaoTest {
    @Resource
    private CategoryDao categoryDao;

    //注意:整合JUnit5的@Test注解为org.junit.jupiter.api.Test里的
    @Test
    public void selectList() {
        List<CategoryEntity> categoryEntityList=categoryDao.selectList(null);
    }
}

三、整合JUnit4

(一)spring-boot-starter-test:2.3.4.RELEASE默认兼容Junit4的依赖

org.springframework:spring-test:5.2.9.RELEASE
org.springframework.boot:spring-boot-test:2.3.4.RELEASE
#这个就是上面排除的vintage engine依赖
org.junit.vintage:junit-vintage-engine:5.6.2

(二)引入依赖

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-test</artifactId>
    <scope>test</scope>
</dependency>
<dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <version>4.13.1</version>
    <scope>test</scope>
</dependency>

(三)测试类代码

package com.online.store.dao;

import com.online.store.product.ProductApplication;
import com.online.store.product.dao.CategoryDao;
import com.online.store.product.entity.CategoryEntity;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import javax.annotation.Resource;
import java.util.List;

//整合JUnit4需要加上@RunWith(SpringRunner.class)
@RunWith(SpringRunner.class)
//ProductApplication是我的主启动类,换成自己的就可以
@SpringBootTest(classes = ProductApplication.class)
public class CategoryDaoTest {
    @Resource
    private CategoryDao categoryDao;

    //注意:整合JUnit4的@Test注解为org.junit.Test里的
    @Test
    public void selectList() {
        List<CategoryEntity> categoryEntityList=categoryDao.selectList(null);
    }
}

来源:https://www.cnblogs.com/sitepoint/p/16389464.html
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