Question

I am working on legacy code and writing some junit tests (I know, wrong order, never mind) using jmock (also wasn’t my choice, nothing I can change about that) and I have class which does some elaborate logging, messing with Strings in general. We are using log4j for logging and I want to test those logged messages. I thought about mocking Logger class, but I don’t know how to do it.

As usually we have Logger done like this:

private static final Logger LOG = Logger.getLogger(SomeClass.class);

Does anyone have any idea how to mock method .getLogger(class) or any other idea how to check what exactly has been logged?

Answer 1

You can write own appender and redirect all output to it.