Jmock2.0

JMock资料本来就少， JMock2.0更是少之又少，官方那可怜巴巴的几个连接，似乎并不能说明一个简单的例子应该怎么运行。
我结合官方那个例子，简单的写了一个最简单的JMock实例。
废话少说，先把jar包加上，我试了一下，下面似乎是必须的：
jmock.jar, jmock-junit.jar, junit.jar, hamcrest-core.jar, hamcrest-library.jar
配置好了，可以开始玩Mock了。与Spring相似的，Mock也有两种代理机制，一种是面向接口的，一种是面向普通Java类的（需要cglib.jar支持）。我这里使用的是面向接口的。先写一个简单的接口吧：

java 代码

<wbr>public</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr><wbr> <wbr>interface</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr> IUserService {         <wbr>public</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr> String sayHello(String str);       }    

实现也非常简单：
java 代码

<wbr>public</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr> <wbr>class</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr> UserServiceImpl <wbr>implements</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr> IUserService {         <wbr>public</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr> String sayHello(String str) {             <wbr>return</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr> str;        }    }    

开始测试吧：
java 代码

<wbr>import</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr> junit.framework.TestCase;       <wbr>import</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr> org.jmock.Expectations;     <wbr>import</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr> org.jmock.Mockery;       <wbr>public</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr> <wbr>class</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr> UserServiceTest <wbr>extends</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr> TestCase {        Mockery context = <wbr>new</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr> Mockery();        IUserService userService = <wbr>null</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr>;           <wbr>protected</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr> <wbr>void</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr> setUp() {            userService = context.mock(IUserService. <wbr>class</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr>);        }           <wbr>public</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr> <wbr>void</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr> testSayHello() {             <wbr>final</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr> String message = "HelloSuperLeo"</wbr><wbr style="LINE-HEIGHT: 1.3em">;            context.checking( <wbr>new</wbr><wbr style="LINE-HEIGHT: 1.3em"></wbr></wbr><wbr> Expectations() {                {                    one(userService).sayHello("HelloSuperLeo"</wbr><wbr style="LINE-HEIGHT: 1.3em">);                    will(returnValue(message));                }            });               // 测试成功 </wbr><wbr style="LINE-HEIGHT: 1.3em">           String result = userService.sayHello("HelloSuperLeo"</wbr><wbr style="LINE-HEIGHT: 1.3em">);               // 测试失败 </wbr><wbr style="LINE-HEIGHT: 1.3em">           // String result = userService.sayHello("fdjsasdfa"); </wbr><wbr style="LINE-HEIGHT: 1.3em">              assertSame(result, message);           }       }    

在JMock2.0后， Mock已经改成Mockery了， 所以大家要注意这个区别。
上面的代码讲的就是一件事： 模拟当传入参数（这里是："HelloSuperLeo"）时，返回预先的值（这里是：message="HelloSuperLeo"）。然后运行要测试的方法（这里是：userService.sayHello(String str)）。
Mock要解决的问题在这个简单的例子里似乎并不能体现出来，不过，先让大家知道怎么用才是最重要的吧