cleanup: Adds t.Helper() to test helper function
cleanup: Adds t.Helper() to test helper function

This commit adds t.Helper() to the test helper
function. With this call go test prints correct
lines of code for failed tests. Otherwise,
printed lines will be inside helpers functions.
For more details check: https://github.com/kulti/thelper

Updates: #1586

Signed-off-by: Yati Padia <41ada77a9130c309042b4c8618e1d2212beb5011@redhat.com>

ceph/ceph-csi,ceph/ceph-csi,ceph/ceph-csi,ceph/ceph-csi