Java 在测试类中模拟私有静态最终变量
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Mock private static final variables in the testing class
提问by Susitha Ravinda Senarath
I have a few private static final fields in the class I want to test. Like follows
我要测试的类中有一些私有的静态最终字段。喜欢如下
public class ClassToTest{
....
private static final Myclass myclass = MyClassFactory.getMyClass(type.firstType);
....
}
The type is a enum in the MyClassFactory. That factory do is it initialize object according to type passed and return.
该类型是 MyClassFactory 中的一个枚举。该工厂所做的是根据传递和返回的类型初始化对象。
My question is does powermock support this and if so how to do this.
我的问题是 powermock 是否支持这一点，如果支持，如何做到这一点。
回答by DaveH
PowerMock ( + a mocking framework ) will allow you to do this. Presumeably you're talking about mocking MyClassFactory.getMyClass() ?
PowerMock（+ 一个模拟框架）将允许您执行此操作。大概你在谈论嘲笑 MyClassFactory.getMyClass() ？
See this questionfor an example
请参阅此问题以获取示例
回答by RamonBoza
You can use reflection also if any mock library works for you.
如果任何模拟库适合您，您也可以使用反射。
Field f = classToTest.getclass().getDeclaredField("myclass ");
f.setAccessible(true);
f.set(classToTest,/*NEW VALUE*/);
回答by Tom Jonckheere
Why do you want to test this value? Shouldn't you test your enum, test if it returns the correct value when a given type is passed to it. If you want to test the assignment of the enum to the field you are doubting basic java assignment.
为什么要测试这个值？你不应该测试你的枚举，测试当给定类型传递给它时它是否返回正确的值。如果您想测试枚举对字段的分配，您会怀疑基本的 java 分配。
