1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.hadoop.hbase;
18
19 import static org.junit.Assert.assertTrue;
20
21 import org.apache.hadoop.hbase.testclassification.SmallTests;
22 import org.apache.hadoop.hbase.util.Bytes;
23 import org.junit.Test;
24 import org.junit.experimental.categories.Category;
25
26 @Category(SmallTests.class)
27 public class TestTagRewriteCell {
28
29 @Test
30 public void testHeapSize() {
31 Cell originalCell = CellUtil.createCell(Bytes.toBytes("row"), Bytes.toBytes("value"));
32 final int fakeTagArrayLength = 10;
33 TagRewriteCell trCell = new TagRewriteCell(originalCell, new byte[fakeTagArrayLength]);
34
35 // Get the heapSize before the internal tags array in trCell are nuked
36 long trCellHeapSize = trCell.heapSize();
37
38 // Make another TagRewriteCell with the original TagRewriteCell
39 // This happens on systems with more than one RegionObserver/Coproc loaded (such as
40 // VisibilityController and AccessController)
41 TagRewriteCell trCell2 = new TagRewriteCell(trCell, new byte[fakeTagArrayLength]);
42
43 assertTrue("TagRewriteCell containing a TagRewriteCell's heapsize should be larger than a " +
44 "single TagRewriteCell's heapsize", trCellHeapSize < trCell2.heapSize());
45 assertTrue("TagRewriteCell should have had nulled out tags array", trCell.heapSize() <
46 trCellHeapSize);
47 }
48 }