SMALL_PAYLOAD
CHK(fRing.WriteExactly(SMALL_PAYLOAD, sizeof(SMALL_PAYLOAD)) == B_OK);
ReadCheck(fRing, SMALL_PAYLOAD, sizeof(SMALL_PAYLOAD));
MemoryRingIOTest* small = new MemoryRingIOTest(sizeof(SMALL_PAYLOAD));
CHK(fRing.WriteExactly(SMALL_PAYLOAD, sizeof(SMALL_PAYLOAD), NULL) == B_OK);
ReadCheck(fRing, SMALL_PAYLOAD, sizeof(SMALL_PAYLOAD));
CHK(fRing.SetSize(sizeof(SMALL_PAYLOAD)) == B_OK);