[Spring5.x]Spring5整合JUnit4、整合JUnit5的实例

Spring5整合JUnit4:

Book.java

package test.entity;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

@Component
public class Book {
    @Value("1")
    private int id;
    @Value("李四")
    private String name;

    public Book(int id, String name) {
        this.id = id;
        this.name = name;
    }

    @Override
    public String toString() {
        return "Book{" +
                "id=" + id +
                ", name='" + name + '\'' +
                '}';
    }

    public Book() {
    }

}

           

bean3.xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
                            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
                            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
                            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <!--开启组件扫描-->
    <context:component-scan base-package="test"></context:component-scan>

</beans>
           

TestJunit4.java:

package test;

import cn.imu.service.UserService;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import test.entity.Book;

@RunWith(SpringJUnit4ClassRunner.class)//单元测试框架，整合JUnit4
@ContextConfiguration("classpath:bean3.xml")//加载配置文件
public class TestJunit4 {
   @Autowired
    private Book book;

    @Test
    public void test(){
       System.out.println(book);
    }

}
           

运行结果：

这里的：

相当于：

极大的简化了测试代码，提高了测试效率。

Spring5整合JUnit5:

TestJunit5.java:

package test;

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit.jupiter.SpringExtension;
import test.entity.Book;

@ExtendWith(SpringExtension.class)//单元测试框架，整合JUnit5
@ContextConfiguration("classpath:bean3.xml")//加载配置文件
class TestJunit5 {
    @Autowired
    private Book book;

    @Test
    public void test() {
        System.out.println(book);
    }


    @Test
    public void test1(){
        ApplicationContext context=new ClassPathXmlApplicationContext("bean3.xml");
        Book book=context.getBean("book",Book.class);
       System.out.println(book);
    }
}

           

运行测试test函数的结果：

整合Junit4与Junit5的不同之处：

Junit4：

Junit5：

可将2步注解简化为（即使用复合注解整合上述2个注解）：