issue #9: add instance name tests
issue #9: add instance name tests

Also fix corner case in which a router would print from a deallocated
environment.

Signed-off-by: Matteo Cafasso <43c758619f0ced9dc5c51a50803f3466c86e4c3d@gmail.com>

noxdafox/clipspy,noxdafox/clipspy