Add one test for each of the functions in offlineimap.imaputil, to make
sure they keep working. These functions tests the internal innards of
the offlineimap module rather than invoking offlineimap as a program.
Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
This is the first revision that actually performs a test, in that it
starts up OfflineImap and sees if there are any exceptions.
Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>