Hi @siaeleni -
You should be able to do:
ModuleNameLogic().Test()
if you are in a different module file or in the python interactor you might need to call import ModuleName
first.
(As an aside, the other ‘logic’ class slicer.modules.moduleName.logic
is actually the C++ loadable module instance corresponding to the scripted module, but it’s really just an internal structure and doesn’t have any particular utility here).
-Steve