/*
* 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.spiller;
import com.facebook.presto.ExceededSpillLimitException;
import io.airlift.units.DataSize;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import static io.airlift.units.DataSize.Unit.MEGABYTE;
import static org.testng.Assert.assertEquals;
public class TestSpillSpaceTracker
{
private static final DataSize MAX_DATA_SIZE = new DataSize(10, MEGABYTE);
private SpillSpaceTracker spillSpaceTracker;
@BeforeMethod
public void setUp()
{
spillSpaceTracker = new SpillSpaceTracker(MAX_DATA_SIZE);
}
@Test
public void testSpillSpaceTracker()
{
assertEquals(spillSpaceTracker.getCurrentBytes(), 0);
assertEquals(spillSpaceTracker.getMaxBytes(), MAX_DATA_SIZE.toBytes());
long reservedBytes = new DataSize(5, MEGABYTE).toBytes();
spillSpaceTracker.reserve(reservedBytes);
assertEquals(spillSpaceTracker.getCurrentBytes(), reservedBytes);
long otherReservedBytes = new DataSize(2, MEGABYTE).toBytes();
spillSpaceTracker.reserve(otherReservedBytes);
assertEquals(spillSpaceTracker.getCurrentBytes(), (reservedBytes + otherReservedBytes));
spillSpaceTracker.reserve(otherReservedBytes);
assertEquals(spillSpaceTracker.getCurrentBytes(), (reservedBytes + 2 * otherReservedBytes));
spillSpaceTracker.free(otherReservedBytes);
spillSpaceTracker.free(otherReservedBytes);
assertEquals(spillSpaceTracker.getCurrentBytes(), reservedBytes);
spillSpaceTracker.free(reservedBytes);
assertEquals(spillSpaceTracker.getCurrentBytes(), 0);
}
@Test (expectedExceptions = ExceededSpillLimitException.class)
public void testSpillOutOfSpace()
{
assertEquals(spillSpaceTracker.getCurrentBytes(), 0);
spillSpaceTracker.reserve(MAX_DATA_SIZE.toBytes() + 1);
}
@Test (expectedExceptions = IllegalArgumentException.class)
public void testFreeToMuch()
{
assertEquals(spillSpaceTracker.getCurrentBytes(), 0);
spillSpaceTracker.reserve(1000);
spillSpaceTracker.free(1001);
}
}