Junit4 and hamcrest

单元测试：

package com.example.junit.user;

import static org.junit.Assert.*;
import static org.hamcrest.Matchers.*;
// 静态引入Matchers下的静态方法 使用hamcrest的matchers

import org.junit.Test;

public class TestStudent {

    @Test
    public void testAdd() {
        Student s = new Student(3,6);
        int z = s.add();
        assertThat(z,is(9));
    }

}