UnitTestBase是怎么来的 我那里报错了 不是jar包里的吧

自己跟着做的   代码没问题

package com.interface1;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.junit.runners.BlockJUnit4ClassRunner;

@RunWith(BlockJUnit4ClassRunner.class)

public class MainTestJunit extends UnitTestBase{

public MainTestJunit() {

super("classpath*:spring-ioc.xml");

}

@Test

public void testSay() {

OneInterface oneInterface = super.getBean("oneInterface");

oneInterface.say("This is a test.");

}

}