if err != nil {
				t.Errorf("Case %d: unexpected err: %v", i, err)
			}

			oRef, lRef, skipRef, snRef, psRef := decryptedRangeRef(test.decSizes, skipLen, readLen, false)
			if o != oRef || l != lRef || skip != skipRef || sn != snRef || ps != psRef {
				t.Errorf("Case %d: test failed: %d %d %d %d %d (Ref: %d %d %d %d %d)",
					i, o, l, skip, sn, ps, oRef, lRef, skipRef, snRef, psRef)
			}
		}