Java 如何使用 Mockito 在模拟对象上设置属性？
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How do I set a property on a mocked object using Mockito?
提问by ankit
I have a scenario where I have to set a property of a mocked object as follows:
我有一个场景，我必须按如下方式设置模拟对象的属性：
SlingHttpRequest slingHttpRequest= mock(SlingHttpRequest);
slingHttpRequest.setAttribute("search", someObject);
When I try to print this attribute I get null. How do I set this property?
当我尝试打印此属性时，我得到null. 如何设置此属性？
采纳答案by Makoto
You don't normally set properties on your mocked objects; instead, you do some specific thing when it's invoked.
您通常不会在模拟对象上设置属性；相反，当它被调用时你会做一些特定的事情。
when(slingHttpRequest.getAttribute("search")).thenReturn(someObject);
回答by Dzung BUI
Mock object is not where you store data, it's for you to teach the behavior when its methods are invoked.
Mock 对象不是您存储数据的地方，而是让您在调用其方法时教授行为。
试试这个：https: //www.google.com/search?q=mockito+example&oq=mockito+example&aqs=chrome..69i57j0l5.6790j0j7&sourceid=chrome&espv=210&es_sm=93&ie=UTF-8
回答by 8bitjunkie
I'm afraid you're misusing your mock SlingHttpRequest.
恐怕你在滥用你的 mock SlingHttpRequest。
Mockito requires you to wire up your mock's properties before you use them in your test scenarios, i.e.:
Mockito 要求您在测试场景中使用它们之前连接模拟的属性，即：
Mockito.when(slingHttpRequest.getAttribute("search")).thenReturn(new Attribute());
Mockito.when(slingHttpRequest.getAttribute("search")).thenReturn(new Attribute());
You cannot call the setAttribute(final Attribute a)method during the test like so:
您不能setAttribute(final Attribute a)像这样在测试期间调用该方法：
slingHttpRequest.setAttribute(someObject);
slingHttpRequest.setAttribute(someObject);
If you do this, when the test runs, getAttribute()will return null.
如果你这样做，当测试运行时，getAttribute()将返回null.
Incidently, if the code you are unit testing is going to call a setter on your mock in this way, do not use a mock. Use a stub.
顺便说一句，如果您正在单元测试的代码将以这种方式在您的模拟上调用 setter，请不要使用模拟。使用存根。
