java 使用 Mockito 调用最终类静态方法的模拟对象
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/17083432/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Mock objects calling final classes static methods with Mockito
提问by user962206
I just started mocking different layers of our application. I came to a point where one of my mock objects is returning NPE when it calls a final class static method. Is there a way around this?
我刚刚开始模拟我们应用程序的不同层。我的一个模拟对象在调用最终类静态方法时返回 NPE。有没有解决的办法？
e.g.
例如
when(mockObject.someMethod(FinalClass.staticMethod(someParam)).anotherMethodCall)
.thenReturn("someString");
回答by DaveH
You have to use PowerMock and Mockito together.
您必须同时使用 PowerMock 和 Mockito。
I don't understand what your code snippet is trying to do, but the following snippets allow the static getInstance()method of the Calendarclass to return a mocked CalendarObject. Maybe that'll point you in the right direction
我不明白你的代码片段试图做什么，但以下片段允许类的静态getInstance()方法Calendar返回一个模拟Calendar对象。也许这会给你指明正确的方向
At the class level:
在班级层面：
@RunWith(PowerMockRunner.class)
@PrepareForTest(Calendar.class)
public class XXXXXX {
In your test method:
在您的测试方法中：
PowerMockito.mockStatic(Calendar.class);
Calendar calendar = mock(Calendar.class);
when(calendar.get(eq(Calendar.HOUR_OF_DAY))).thenReturn(3);
Mockito.when(Calendar.getInstance()).thenReturn(calendar);
回答by anergy
Mockito doesn't support mocking a final class.Have a look at PowerMock.It allows you to mock static methods and classes. It can work with Mockito, documentationexplains how to do that.
Mockito 不支持模拟最终类。看看PowerMock 。它允许你模拟静态方法和类。它可以与 Mockito 一起使用，文档解释了如何做到这一点。
