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EasyMock实践指南

2013年03月23日 ⁄ 综合 ⁄ 共 3957字 ⁄ 字号 评论关闭

EasyMock是个mock框架,用于动态产生mock对象,mock对象主要是用来模拟真实环境中的对象,原理上你应该为每个被依赖的接口准备mock对象,但那样实在太麻烦,无端的会产生很多mock类,所以EasyMock派上用场了!注意EasyMock2.0不能为非接口产生mock对象

 

EashMock的使用模式

1)记录

   mockobj.someMethod();

2) 如果该方法有返回值,那么必须使用

    EasyMock.expectLastCall().andReturn(xxxx);(不一定非得用这句话,但一定要有返回      值)    xxx为被mock对象的someMethod()方法的期望返回值

 

3)回放(用于激活mock对象)

    EasyMock.replay(mockobj);

 

实例如下:

 

package moxtv.central.service.impl;

 

import java.util.ArrayList;

import java.util.HashSet;

import java.util.List;

import java.util.Map;

import java.util.Set;

 

import junit.framework.TestCase;

import moxtv.central.dao.UploadMachineDao;

import moxtv.central.dao.UploadMachineJDBCDao;

import moxtv.central.po.UploadServer;

 

import org.easymock.EasyMock;

 

/**

* 上传机管理测试集.

*

* @author weip

* @time 2006-3-30 10:06:09

*

*/

public final class UploadMachineServiceTest extends TestCase {

 

/**

* 要测试的类.

*/

private UploadMachineServiceImpl uploadMachineService;

 

/**

* 测试对象依赖的对象

*/

private UploadMachineDao mockUploadMachineDao;

 

/**

* 测试对象依赖的对象

*/

private UploadMachineJDBCDao mockUploadMachineJDBCDao;

 

/**

*

* @param name

*

 

 

String

*/

public UploadMachineServiceTest(final String name) {

super(name);

}

 

/**

*

* @author weip

* @time 2006-3-30 10:10:18 (non-Javadoc)

* @see junit.framework.TestCase#setUp()

* @throws Exception

*

 

 

a

*

*/

protected void setUp() throws Exception {

super.setUp();

 

mockUploadMachineDao = (UploadMachineDao) EasyMock

.createMock(UploadMachineDao.class);

 

mockUploadMachineJDBCDao = (UploadMachineJDBCDao) EasyMock

.createMock(UploadMachineJDBCDao.class);

 

uploadMachineService = new UploadMachineServiceImpl();

 

uploadMachineService.setUploadMachineDao(mockUploadMachineDao);

 

uploadMachineService.setUploadMachineJDBCDao(mockUploadMachineJDBCDao);

 

}

 

/*

* protected void tearDown() throws Exception { super.tearDown(); }

*/

 

/**

* 测试登陆上传机管理首页.

*

* @author weip

* @throws Exception

*

 

 

a

* @time 2006-3-30 10:20:14

*/

public void testLoadMainPage() throws Exception {

 

UploadMachineVO vo = new  UploadMachineVO ();

 

mockUploadMachineDao.query(vo );

 

EasyMock.expectLastCall().andReturn(new ArrayList());

 

mockUploadMachineDao.getTotalMachineCount();

 

EasyMock.expectLastCall().andReturn(new Integer(6));

 

EasyMock.replay(mockUploadMachineDao);

 

Map map = uploadMachineService.loadMainPage(vo );

 

assertNotNull(map);

 

assertNotNull(map.get("list"));

 

List list = (List) map.get("list");

 

assertEquals(0, list.size());

 

Integer sum = (Integer) map.get("sum");

 

assertNotNull(sum);

 

assertEquals(6, sum.intValue());

 

}

 

/**

* 测试获取上传机详情.

*

* @author weip

* @throws Exception

*

 

 

a

* @time 2006-3-30 11:14:33

*/

public void testGetMachine() throws Exception {

 

int serverId = 1;

 

mockUploadMachineDao.getMachine(serverId);

 

UploadServer us = createUploadServer();

 

EasyMock.expectLastCall().andReturn(us);

 

EasyMock.replay(mockUploadMachineDao);

 

UploadServer machine = uploadMachineService.getMachine(serverId);

 

assertEquals(1, machine.getId().intValue());

 

}

 

/**

* 测试添加上传机.

*

* @author weip

* @throws Exception

*

 

 

a

* @time 2006-3-30 10:09:42

*/

public void testAddMachine() throws Exception {

 

UploadServer server = createUploadServer();

 

mockUploadMachineDao.addMachine(server);

 

EasyMock.replay(mockUploadMachineDao);

 

uploadMachineService.addMachine(server);

 

EasyMock.verify(mockUploadMachineDao);

 

}

 

/**

* 测试删除上传机.

*

* @author weip

* @throws Exception

*

 

 

a

* @time 2006-3-30 10:55:28

*

*/

public void testDeleteMachines() throws Exception {

 

 

int[] serverids = new int[] {1 };

 

mockUploadMachineJDBCDao.deleteMachines(serverids);

 

EasyMock.replay(mockUploadMachineJDBCDao);

 

uploadMachineService.deleteMachines(serverids);

 

EasyMock.verify(mockUploadMachineJDBCDao);

 

 

}

 

/**

* 测试修改上传机.

*

* @author weip

* @throws Exception

*

 

 

a

* @time 2006-3-30 11:10:48

*/

public void testUpdateMachine() throws Exception {

 

mockUploadMachineDao.getMachine(1);

 

UploadServer destus = createUploadServer();

 

EasyMock.expectLastCall().andReturn(destus);

 

EasyMock.replay(mockUploadMachineDao);

 

UploadServer srcus = createUploadServer();

 

uploadMachineService.updateMachine(srcus);

 

EasyMock.verify(mockUploadMachineDao);

 

}

 

/**

* @author weip

* @time 2006-4-7 9:12:09

* @return UploadServer

*/

private UploadServer createUploadServer() {

UploadServer us = new UploadServer(new Integer(1));

Set set = new HashSet();

us.setDiskSet(set);

return us;

}

 

}

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