JUnit testing package private class in Maven formatted project

I have a package private implementation of an Interface, the methods defined in that Interface can be accessed through a public factory. I was just wonderin开发者_开发技巧g, how should I unit test that class as it cannot be accessed outside the package, or should I be testing it through the factory?

Thanks

-Abidi

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The usual convention is to put the unit test of a class in the same package as the class under test. This allows the unit test to access package-private and protected methods of the class, and thus to test them.