Some statements could not be tested, such as default cases of switches
where all possible cases are already handled and some statements where
the system locale is used.
I also removed some statements that would never be reached and hence
will never be able to be covered by tests.
Change-Id: I8ea3071f66d942d986e65708732af6751d36b5e3
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
6a7a08b4a8