/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.facebook.presto.orc;
import com.google.common.collect.ImmutableList;
import io.airlift.units.DataSize;
import org.testng.annotations.Test;
import java.util.List;
import static com.facebook.presto.orc.OrcDataSourceUtils.mergeAdjacentDiskRanges;
import static io.airlift.units.DataSize.Unit.BYTE;
import static io.airlift.units.DataSize.Unit.GIGABYTE;
import static org.testng.Assert.assertEquals;
public class TestOrcDataSourceUtils
{
@Test
public void testMergeSingle()
{
List<DiskRange> diskRanges = mergeAdjacentDiskRanges(
ImmutableList.of(new DiskRange(100, 100)),
new DataSize(0, BYTE),
new DataSize(0, BYTE));
assertEquals(diskRanges, ImmutableList.of(new DiskRange(100, 100)));
}
@Test
public void testMergeAdjacent()
{
List<DiskRange> diskRanges = mergeAdjacentDiskRanges(
ImmutableList.of(new DiskRange(100, 100), new DiskRange(200, 100), new DiskRange(300, 100)),
new DataSize(0, BYTE),
new DataSize(1, GIGABYTE));
assertEquals(diskRanges, ImmutableList.of(new DiskRange(100, 300)));
}
@Test
public void testMergeGap()
{
List<DiskRange> consistent10ByteGap = ImmutableList.of(new DiskRange(100, 90), new DiskRange(200, 90), new DiskRange(300, 90));
assertEquals(mergeAdjacentDiskRanges(consistent10ByteGap, new DataSize(0, BYTE), new DataSize(1, GIGABYTE)), consistent10ByteGap);
assertEquals(mergeAdjacentDiskRanges(consistent10ByteGap, new DataSize(9, BYTE), new DataSize(1, GIGABYTE)), consistent10ByteGap);
assertEquals(mergeAdjacentDiskRanges(consistent10ByteGap, new DataSize(10, BYTE), new DataSize(1, GIGABYTE)), ImmutableList.of(new DiskRange(100, 290)));
assertEquals(mergeAdjacentDiskRanges(consistent10ByteGap, new DataSize(100, BYTE), new DataSize(1, GIGABYTE)), ImmutableList.of(new DiskRange(100, 290)));
List<DiskRange> middle10ByteGap = ImmutableList.of(new DiskRange(100, 80), new DiskRange(200, 90), new DiskRange(300, 80), new DiskRange(400, 90));
assertEquals(mergeAdjacentDiskRanges(middle10ByteGap, new DataSize(0, BYTE), new DataSize(1, GIGABYTE)), middle10ByteGap);
assertEquals(mergeAdjacentDiskRanges(middle10ByteGap, new DataSize(9, BYTE), new DataSize(1, GIGABYTE)), middle10ByteGap);
assertEquals(mergeAdjacentDiskRanges(middle10ByteGap, new DataSize(10, BYTE), new DataSize(1, GIGABYTE)),
ImmutableList.of(new DiskRange(100, 80), new DiskRange(200, 180), new DiskRange(400, 90)));
assertEquals(mergeAdjacentDiskRanges(middle10ByteGap, new DataSize(100, BYTE), new DataSize(1, GIGABYTE)), ImmutableList.of(new DiskRange(100, 390)));
}
@Test
public void testMergeMaxSize()
{
List<DiskRange> consistent10ByteGap = ImmutableList.of(new DiskRange(100, 90), new DiskRange(200, 90), new DiskRange(300, 90));
assertEquals(mergeAdjacentDiskRanges(consistent10ByteGap, new DataSize(10, BYTE), new DataSize(0, BYTE)), consistent10ByteGap);
assertEquals(mergeAdjacentDiskRanges(consistent10ByteGap, new DataSize(10, BYTE), new DataSize(100, BYTE)), consistent10ByteGap);
assertEquals(mergeAdjacentDiskRanges(consistent10ByteGap, new DataSize(10, BYTE), new DataSize(190, BYTE)),
ImmutableList.of(new DiskRange(100, 190), new DiskRange(300, 90)));
assertEquals(mergeAdjacentDiskRanges(consistent10ByteGap, new DataSize(10, BYTE), new DataSize(200, BYTE)),
ImmutableList.of(new DiskRange(100, 190), new DiskRange(300, 90)));
assertEquals(mergeAdjacentDiskRanges(consistent10ByteGap, new DataSize(10, BYTE), new DataSize(290, BYTE)), ImmutableList.of(new DiskRange(100, 290)));
List<DiskRange> middle10ByteGap = ImmutableList.of(new DiskRange(100, 80), new DiskRange(200, 90), new DiskRange(300, 80), new DiskRange(400, 90));
assertEquals(mergeAdjacentDiskRanges(middle10ByteGap, new DataSize(0, BYTE), new DataSize(1, GIGABYTE)), middle10ByteGap);
assertEquals(mergeAdjacentDiskRanges(middle10ByteGap, new DataSize(9, BYTE), new DataSize(1, GIGABYTE)), middle10ByteGap);
assertEquals(mergeAdjacentDiskRanges(middle10ByteGap, new DataSize(10, BYTE), new DataSize(1, GIGABYTE)),
ImmutableList.of(new DiskRange(100, 80), new DiskRange(200, 180), new DiskRange(400, 90)));
assertEquals(mergeAdjacentDiskRanges(middle10ByteGap, new DataSize(100, BYTE), new DataSize(1, GIGABYTE)), ImmutableList.of(new DiskRange(100, 390)));
}
}