001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to you under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.hadoop.hbase.quotas;
018
019import static org.junit.Assert.assertEquals;
020
021import org.apache.hadoop.hbase.HBaseClassTestRule;
022import org.apache.hadoop.hbase.testclassification.SmallTests;
023import org.junit.ClassRule;
024import org.junit.Test;
025import org.junit.experimental.categories.Category;
026
027@Category({SmallTests.class})
028public class TestRegionSizeImpl {
029  @ClassRule
030  public static final HBaseClassTestRule CLASS_RULE =
031      HBaseClassTestRule.forClass(TestRegionSizeImpl.class);
032
033  @Test
034  public void testReportingWithSizeChanges() {
035    long currentSize = 1024L;
036    RegionSizeImpl size = new RegionSizeImpl(currentSize);
037
038    assertEquals(currentSize, size.getSize());
039
040    currentSize *= 2L;
041    size.setSize(currentSize);
042    assertEquals(currentSize, size.getSize());
043
044    long delta = 512L;
045    currentSize += delta;
046    size.incrementSize(delta);
047    assertEquals(currentSize, size.getSize());
048  }
049}