JMock，获取错误

Question

获取错误: java.lang.AssertionError:意外调用: user.setUserName("John")未指定期望:您...-忘记以基数子句开始期望？-调用模拟方法来指定期望的参数？在此之前发生的事情:什么都没有！在org.jmock.api.ExpectationError.unexpected(ExpectationError.java:23)

代码：

Mockery context = new JUnit4Mockery();

@Test
public void testSayHello(){
    context.setImposteriser(ClassImposteriser.INSTANCE);
    final User user =  context.mock(User.class);
//  user.setUserName("John");
    context.checking(new Expectations(){{
        exactly(1).of(user);
        user.setUserName("John");
        will(returnValue("Hello! John"));
    }}
    );
     context.assertIsSatisfied();
    /*HelloWorld helloWorld = new HelloWorld();
    Assert.assertEquals(helloWorld.sayHelloToUser(user), "Hello! John");
    ;*/
}

Answer 1

在设置期望时，您可以通过在调用of()返回的对象上调用该方法来指定要模拟的方法，而不是在模拟本身上调用该方法(这不是EasyMock)。

@Test
public void testSayHello(){
    // setting up the mock
    context.setImposteriser(ClassImposteriser.INSTANCE);
    final User user =  context.mock(User.class);
    context.checking(new Expectations(){{
        exactly(1).of(user).setUserName("John");
        will(returnValue("Hello! John"));
    }});

    // using the mock
    HelloWorld helloWorld = new HelloWorld();
    String greeting = helloWorld.sayHelloToUser(user);

    // checking things afterward
    Assert.assertEquals(greeting, "Hello! John");
    context.assertIsSatisfied();
}