junit测试框架

 import junit.framework.Assert;

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

 public class JUnitTest {

     //方法执行JUnit时，先运行@Before
     @Before
     public void before() {

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

     //方法执行JUnit时，后运行@After
     @After
     public void after() {

         System.out.println("After");
     }

     //标注了@Test可以用JUnit测试
     @Test
     public void testRun() {

         Person t = new Person();

         //断言  其他返回值是1，就执行run()；
         Assert.assertEquals("1", t.run());
     }

     @Test
     public void testEai() {
         Person t = new Person();

         t.eat();

     }

 }

 public class Person {

     public String run(){

         System.out.println("run");

         return "1";
     }

     public void eat(){

         System.out.println("eai");
     }

 }