Fix unit test that was randomly failing
Fix unit test that was randomly failing

Change-Id: I833a1ee5376cb51b77e796073f06e0ecf92d96d4
Reviewed-on: http://gerrit.aldebaran.lan/43850
Reviewed-by: tfontenay <c24d15a4b18b5a000d37b3d79586313e143f61c8@aldebaran-robotics.com>
Reviewed-by: pdaouadi <fc1eb3334d3fdad315bae23aa166bc70bd434067@aldebaran-robotics.com>
Approved: tfontenay <c24d15a4b18b5a000d37b3d79586313e143f61c8@aldebaran-robotics.com>
Tested-by: tfontenay <c24d15a4b18b5a000d37b3d79586313e143f61c8@aldebaran-robotics.com>

bsautron/libqi,aldebaran/libqi,vbarbaresi/libqi,aldebaran/libqi,aldebaran/libqi