junit in action (估计是第一版的)的一个错误中文版P145_《junit in action》的第一版-优快云博客

本文介绍了一个针对转账功能的单元测试案例实现，通过MockAccountManager模拟账户管理器，并使用JUnit进行断言验证，确保转账操作正确执行。

package test.myUnitTest.fine.tasting;

import myUnitTest.fine.tasting.*;

import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import junit.framework.JUnit4TestAdapter;

public class TestAccountService {
    @Test public void transferOk(){
        MockAccountManager mockAccountManager =
            new MockAccountManager();
        Account senderAccount = new Account("1", 200 );
        Account beneficiaryAccount = new Account("2", 100 );

        mockAccountManager.addAccount("1", senderAccount);
        mockAccountManager.addAccount("2", beneficiaryAccount);

        AccountService accountService = new AccountService();

        accountService.setAccountManager(mockAccountManager);

        accountService.transfer("1", "2", 50);

        assertEquals( (long)150,(senderAccount.getBalance() ));
        assertEquals( (long)150, (beneficiaryAccount.getBalance()) );

       //原书
       // assertEquals( 150,(senderAccount.getBalance() ));
       //assertEquals( 150, (beneficiaryAccount.getBalance()) );

    }
}