Junit protected method

9
votes

I'm wondering about a nice way to deal with a protected method in Junit.

Assuming I want to test a class called A which has a protected member and constructor. I understood that in order to test the class A I should write another class called ATest which might extend TestCase ( this should be mandatory in Junit3 ). Because I want to test a protected method and because A has a protected constructor, my test class ATest should also extend the class A where that method is implemented in order to be able to create that class and to access to the method.

could be a double inheritance from both classes a nice solution?

P.S I've already Known that in Junit 4 the inheritance from the TestCase might be avoided.

2
javajunitjunit4junit3
Can you explain why you would,like to extend TestCase? I think you should be able to do what you are saying and extend A to publicize its protected methods. I've dine it with NUnit and it works just fine - cowboydan
possible duplicate of junit & java : testing non-public methods - Ciro Santilli 新疆再教育营六四事件法轮功郝海东

2 Answers

17
votes

To gain access to A's protected members, you can just put A and ATest in the same package.

1
votes

Java doesn't allow multiple inheritance of implementation. You can implement multiple interfaces.

I would prefer using reflection to get at methods for testing that I don't want clients to know about. Works for private methods, too.