junit的简单使用

Spring测试，代码如下：

（1）业务接口

package com.test;

public interface HelloService {            //定义业务接口
    public String SayHello(String name);    //定义SayHello抽象方法
}

（2）业务实现

package com.test;

public class HelloServiceImpl implements HelloService {    //定义业务实现类
    public String SayHello(String name) {            //实现业务方法
        return "Hello！！！"+name;        //返回内容
    }
}

（3）配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans
    xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
    
    <bean id="hello" class="com.test.HelloServiceImpl">
    </bean>
    
</beans>

（4）客户端代码

package com.test;

import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class SpringClient {
    public static void main(String[] args) {
        BeanFactory factory = new ClassPathXmlApplicationContext("applicationContext.xml");
        HelloService helloService=(HelloService)factory.getBean("hello");    //获取业务实现类
        String name="Tom";
        System.out.println(helloService.SayHello(name));    //调用业务方法
    }
}

（5）建立测试代码

package com.test;

import static org.junit.Assert.*;

import org.junit.Before;
import org.junit.Test;

public class SpringClientTest {

    @Before
    public void setUp() throws Exception {
    }

    @Test
    public void testMain() {
        fail("Not yet implemented");
    }

}

修改上述测试代码，如下

package com.test;

import static org.junit.Assert.*;

import org.junit.Before;
import org.junit.Test;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class SpringClientTest {

    @Before
    public void setUp() throws Exception {
    }

    @Test
    public void testMain() {
        BeanFactory factory = new ClassPathXmlApplicationContext("applicationContext.xml");
        HelloService helloService=(HelloService)factory.getBean("hello");    //获取业务实现类
        String name="Tom";
        assertEquals("Hello！！！Tom",helloService.SayHello(name));    //调用业务方法
    }

}

（6）运行结果