001/** 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018package org.apache.hadoop.hbase; 019 020import static org.junit.Assert.assertTrue; 021 022import org.apache.hadoop.hbase.io.HeapSize; 023import org.apache.hadoop.hbase.testclassification.SmallTests; 024import org.apache.hadoop.hbase.util.Bytes; 025import org.junit.ClassRule; 026import org.junit.Test; 027import org.junit.experimental.categories.Category; 028 029@Category(SmallTests.class) 030public class TestTagRewriteCell { 031 032 @ClassRule 033 public static final HBaseClassTestRule CLASS_RULE = 034 HBaseClassTestRule.forClass(TestTagRewriteCell.class); 035 036 @Test 037 public void testHeapSize() { 038 Cell originalCell = CellUtil.createCell(Bytes.toBytes("row"), Bytes.toBytes("value")); 039 final int fakeTagArrayLength = 10; 040 Cell trCell = PrivateCellUtil.createCell(originalCell, new byte[fakeTagArrayLength]); 041 042 // Get the heapSize before the internal tags array in trCell are nuked 043 long trCellHeapSize = ((HeapSize)trCell).heapSize(); 044 045 // Make another TagRewriteCell with the original TagRewriteCell 046 // This happens on systems with more than one RegionObserver/Coproc loaded (such as 047 // VisibilityController and AccessController) 048 Cell trCell2 = PrivateCellUtil.createCell(trCell, new byte[fakeTagArrayLength]); 049 050 assertTrue("TagRewriteCell containing a TagRewriteCell's heapsize should be " + 051 "larger than a single TagRewriteCell's heapsize", 052 trCellHeapSize < ((HeapSize)trCell2).heapSize()); 053 assertTrue("TagRewriteCell should have had nulled out tags array", 054 ((HeapSize)trCell).heapSize() < trCellHeapSize); 055 } 056}