EasyMock实践指南

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;
}