CBQE-1531: fix suite_setUp

Change-Id: If5402012c28f43c93bd9969a7f76c0bba820ac28
Reviewed-on: http://review.couchbase.org/29298
Reviewed-by: Iryna Mironava <irynamironava@yandex.ru>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>