How to mock Class object or how to mock private generic method

Question

I have a private generic method below

private Section convertFromJsonToJavaObj(JSONObject jsonObj, Class<Section> classObj) throws SNPSysException {
    // logic
    return section;    
}

how to mock above method

Answer 1

Testing private methods is generally a code smell. We generally only test public methods.

However if there is a quite complex logic in it and you really need to test it, you can remove the private modifier.

Section convertFromJsonToJavaObj(JSONObject jsonObj, Class<Section> classObj) throws SNPSysException {
     // logic
     return section;    
}

This way your test will be able to access this method if it's in the same package (except that it should be in the test folder instead of main folder)