import org.junit.After;

import org.junit.Before;

import org.junit.Test;

public class TestUnit {

    public static void main(String[] args) {

        System.out.println("aa");

    }

    @Test

    public void testJunit(){

        System.out.println("hello junit!");

    }

    @Before

    public void testBefore(){

        System.out.println("before!");

    }

    @After

    public void testAfter(){

        System.out.println("after!");

    }

}