我有一个公共类,它具有静态变量,静态块和静态函数。我正在测试我的测试器类中的一个静态函数(例如x),通过在测试器类的类级别(Powermock)使用@SuppressStaticInitializationFor来抑制静态块。现在当我从测试器类运行Jnunit测试时,当控制权到达使用类的静态变量的上述函数时,我得到了空指针异常。所以我的问题是@SuppressStaticInitialization对于类中的静态变量的强制初始化也是如此还是只限于静态块?感谢所有帮助
I have a public class that has static variables, static blocks and static functions. I am testing one of the static function(say x) from my tester class , I have suppressed static block by using @SuppressStaticInitializationFor at the class level(Powermock) in the tester class . Now when I am running Jnunit test from my tester class I am getting null pointer exception when control reaches the above function that is using the static variables of the class.So my question is that does @SuppressStaticInitializationFor supress initialization of static variables too in the class or is it just limited to static blocks ? Any help is appreciated
推荐答案@SuppressStaticInitialization的文档中说:-
The documentation for @SuppressStaticInitialization says :-
- 使用此批注抑制一个或多个类的静态初始化程序(构造函数)。
这清楚地表明没有提到静态初始化器和变量。
This clearly suggests static initializers and variables havent been mentioned.
但是您必须注意不要传递类名,而必须传递的全限定名。 @suppressStaticInitialization参数中的类
But you must take care that you must not pass the class name but you must pass the fully qualified name of class in parameter of @SuppressStaticInitialization
您需要做的
@SuppressStaticInitialization(com.myPackage.Employee) public class Employee{ ..... },您不应该这样做
@SuppressStaticInitialization(Employee.class) public class Employee{ ..... }希望您正在正确执行此操作。
hope you are doing this correctly.
T静态变量也没有初始化,的出路是使用 Whitebox 类。您需要执行的步骤是:-
The static variables are also not getting initialized, the way out for this is using the Whitebox class.Steps you need to perform are:-
- 正常执行抑制操作
- 使用方法 Whitebox.setInternalState(ClassName.class,fieldName ,fieldValue)转换为所需的值(在测试用例内)
- 现在您将不会获得空指针异常。
- Do the suppression normally
- use the method Whitebox.setInternalState(ClassName.class,fieldName,fieldValue) to whichever value you want, (inside your test case)
- Now you wont get a null pointer exception.
希望这会有所帮助!
祝你好运!
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SuppressStaticInitializationFor(Powermock)
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