Getting bit by inconsistency again

[Paladin]

OK, I can load Mocks all day long into JFactory and do things with
Mocks for JSession, JApplication, etc.

But JFactory->getUser behaves differently from the rest. JFactory-
>getSession, for example, doesn't care that the object in the variable
isn't JSession, but is rather Mock_JSession. So I can mock away in my
testing.

But JFactory->getUser() not only picks up the value, but tests to see
if it's actually a JUser reference, instead of an object reference.
Which means any and all attempts to mock it on the fly are rejected.
So the only way to play with *those* calls is with a real JUser
object, and not a mock.

So far it's not fatal, but these little inconsistencies are piling up
the frustration and time. When the time comes to refactor based on
testing, we should take care of them.