csi-powermax `make unit-test` failing with: Symmetrix not found

Hi, I'm trying to see if this CSI implementation works on IBM Power (ppc64le). After `git clone` the repo, `make build` was easy enough, and I see a 46MB binary built. However, `make unit-test` spits out a lot of "Symmetrix not found" in red in console, and that section ends like;

Scenario Outline: Retry DeleteSnapshot successfully after receving Pending/Overload error # features/snapshot.feature:630
Given a PowerMax service # features/snapshot.feature:631
Error: Symmetrix not found

464 scenarios (464 failed)
3225 steps (464 failed, 2761 skipped)
1.324653149s

I'm seeing this on a ppc64le VM which runs RHEL 8.3 and doesn't have real EMC storage attached, but thought `unit-test` would run okay? Any thoughts/pointers would be appreciated.

thanks, - Hiro