CBD-762: fix missing credentials in unit tests
CBD-762: fix missing credentials in unit tests

Change-Id: I8d0e5bfaf645604698d1bead310e7003a9b3651d
Reviewed-on: http://review.couchbase.org/23951
Tested-by: buildbot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Bin Cui <ed18693fff32c00e22495f4877a3b901bed09041@gmail.com>

membase/membase-cli,couchbaselabs/couchbase-cli,couchbase/couchbase-cli,membase/membase-cli,couchbaselabs/couchbase-cli,couchbaselabs/couchbase-cli,membase/membase-cli,couchbase/couchbase-cli