final ShardBackendInfo shardBackendInfo = TestUtils.getWithTimeout(stage.toCompletableFuture());
Assert.assertEquals(0L, shardBackendInfo.getCookie().longValue());
Assert.assertEquals(dataTree, shardBackendInfo.getDataTree().get());
final ShardBackendInfo shardBackendInfo = TestUtils.getWithTimeout(stage.toCompletableFuture());
Assert.assertEquals(0L, shardBackendInfo.getCookie().longValue());
Assert.assertEquals(dataTree, shardBackendInfo.getDataTree().get());