jmock2:getting started with junit4 -优快云博客

本文链接：https://blog.youkuaiyun.com/iteye_4972/article/details/82273071

本文详细介绍了如何使用 JMock 进行单元测试，包括接口定义、实现类、测试类的创建以及如何设置预期行为和验证结果，通过两个具体的测试案例展示了 JMock 在测试接口方法时的应用。

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最近想玩玩JMock。
对着官方文档，想开始写个test case，不过让我郁闷的是官方文档上给的实例代码不完全。算了，自己写个跑跑看了。
1.测试接口：
IHelloService:

1 public interface IHelloService {
2
3 /**
4 * @param name
5 * @return hello message
6 */
7 String sayHelloToSomebody(String name);
8
9 }

IMPL:

1 public class HelloServiceImpl implements IHelloService {
2
3 /*
4 * (non-Javadoc)
5 *
6 * @see org.hook.jmock.firstcase.HelloService#sayHelloToSomebody(java.lang.String,
7 * java.lang.String)
8 */
9 public String sayHelloToSomebody(String name) {
10 return " HELLO, " + name + " ! " ;
11 }
12
13 }

Test Case:

1 public class IHelloServiceTest extends TestCase {
2 private Mockery context = new JUnit4Mockery();
3 private IHelloService helloService;
4
5 /**
6 * @throws java.lang.Exception
7 */
8 @Before
9 public void setUp() throws Exception {
10 // set up
11 helloService = context.mock(IHelloService. class );
12 }
13
14 /**
15 * Test method for
16 * { @link org.hook.jmock.firstcase.HelloServiceImpl#sayHelloToSomebody(java.lang.String)}.
17 */
18 @Test
19 public void testSayHelloToSomebody() {
20 final String message = " HELLO,alex! " ;
21 final String name = " alex " ;
22 // expectations
23 context.checking(new Expectations() {
24 {
25 one(helloService).sayHelloToSomebody(name);
26 will(returnValue(message));
27 }
28 });
29 // execute
30 String result = helloService.sayHelloToSomebody(name);
31 // verify
32 context.assertIsSatisfied();
33 assertSame(result, message);
34 }
35 }

OK,跑下测试，green bar...
2.测试类：
HelloService:

1 public class HelloService {
2
3 /**
4 * @param name
5 * @return hello message
6 */
7 public String sayHelloToSomebody(String name) {
8 return " HELLO, " + name + " ! " ;
9 }
10 }

Test Case:

1 public class HelloServiceTest extends TestCase {
2 private Mockery context;
3 private HelloService helloService;
4
5 /**
6 * @throws java.lang.Exception
7 */
8 @Before
9 public void setUp() throws Exception {
10 context = new JUnit4Mockery();
11 // 声明针对类进行mock,针对接口则会采用动态代理,不需要声明
12 context.setImposteriser(ClassImposteriser.INSTANCE);
13 helloService = context.mock(HelloService. class );
14 }
15
16 /**
17 * Test method for
18 * { @link org.hook.jmock.firstcase.HelloService#sayHelloToSomebody(java.lang.String)}.
19 */
20 @Test
21 public void testSayHelloToSomebody() {
22 final String message = " HELLO,vivian! " ;
23 final String name = " vivian " ;
24 // expectations
25 context.checking( new Expectations() {
26 {
27 one(helloService).sayHelloToSomebody(name);
28 will(returnValue(message));
29 }
30 });
31 // execute
32 String result = helloService.sayHelloToSomebody(name);
33 // verify
34 context.assertIsSatisfied();
35 assertSame(result, message);
36 }
37 }

OK,跑下测试，green bar again...
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Link: http://www.blogjava.net/alex0927/archive/2008/06/20/209474.html