1 import junit.framework.Assert; 2  3 import org.junit.After; 4 import org.junit.Before; 5 import org.junit.Test; 6  7 public class JUnitTest { 8  9     //方法执行JUnit时，先运行@Before10     @Before 11     public void before() {12 13         System.out.println("before");14     }15 16     //方法执行JUnit时，后运行@After17     @After18     public void after() {19 20         System.out.println("After");21     }22 23     //标注了@Test可以用JUnit测试24     @Test25     public void testRun() {26 27         Person t = new Person();28         29         //断言  其他返回值是1，就执行run()；30         Assert.assertEquals("1", t.run());31     }32 33     @Test34     public void testEai() {35         Person t = new Person();36 37         t.eat();38 39     }40 41 }

1 public class Person { 2  3     public String run(){ 4          5         System.out.println("run"); 6          7         return "1"; 8     } 9     10     public void eat(){11         12         System.out.println("eai");13     }14 15 }