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.quotas;
019
020import static org.junit.Assert.assertEquals;
021
022import org.apache.hadoop.hbase.HBaseClassTestRule;
023import org.apache.hadoop.hbase.testclassification.SmallTests;
024import org.junit.ClassRule;
025import org.junit.Test;
026import org.junit.experimental.categories.Category;
027
028@Category({ SmallTests.class })
029public class TestRegionSizeImpl {
030  @ClassRule
031  public static final HBaseClassTestRule CLASS_RULE =
032    HBaseClassTestRule.forClass(TestRegionSizeImpl.class);
033
034  @Test
035  public void testReportingWithSizeChanges() {
036    long currentSize = 1024L;
037    RegionSizeImpl size = new RegionSizeImpl(currentSize);
038
039    assertEquals(currentSize, size.getSize());
040
041    currentSize *= 2L;
042    size.setSize(currentSize);
043    assertEquals(currentSize, size.getSize());
044
045    long delta = 512L;
046    currentSize += delta;
047    size.incrementSize(delta);
048    assertEquals(currentSize, size.getSize());
049  }
050}