@Before
public void setUp() throws Exception {
store = mock(StoreImpl.class);
cluster = mock(FullCluster.class);
txn = mock(Transaction.class);
srm = new StringRootManager(store, cluster);
buffers = new HashMap<Long, ByteBuffer>();
when(cluster.hasServer()).thenReturn(true);
when(store.getMaxItemSize()).thenReturn(1024);