Tang Chen 058232b999 [Compute] Check return value is None in compute unit tests.
take_action() in commands inheriting from Command returns nothing.
So we should assert the return is None in the unit tests of
these commands.

Change-Id: I953480ecff3b5beb12255d866d0e1df45f130efd
Partial-Bug: #1550636
2016-02-27 15:38:04 +08:00
..
2014-01-20 17:28:13 +04:00