package org.apache.cassandra.cache; /* * * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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. * */ import java.nio.ByteBuffer; import java.util.UUID; import org.junit.Assert; import org.apache.cassandra.db.ColumnIndex; import org.apache.cassandra.db.DeletionTime; import org.apache.cassandra.db.RowIndexEntry; import org.apache.cassandra.utils.ObjectSizes; import org.github.jamm.MemoryMeter; import org.junit.Test; public class ObjectSizeTest { public static final MemoryMeter meter = new MemoryMeter().omitSharedBufferOverhead(); @Test public void testArraySizes() { long size = ObjectSizes.getArraySize(0, 1); long size2 = meter.measureDeep(new byte[0]); Assert.assertEquals(size, size2); } @Test public void testBiggerArraySizes() { long size = ObjectSizes.getArraySize(0, 1); long size2 = meter.measureDeep(new byte[0]); Assert.assertEquals(size, size2); size = ObjectSizes.getArraySize(8, 1); size2 = meter.measureDeep(new byte[8]); Assert.assertEquals(size, size2); } @Test public void testKeyCacheKey() { KeyCacheKey key = new KeyCacheKey(null, ByteBuffer.wrap(new byte[0])); long size = key.memorySize(); long size2 = meter.measureDeep(key); Assert.assertEquals(size, size2); } @Test public void testKeyCacheValue() { RowIndexEntry entry = new RowIndexEntry(123); long size = entry.memorySize(); long size2 = meter.measureDeep(entry); Assert.assertEquals(size, size2); } @Test public void testKeyCacheValueWithDelInfo() { RowIndexEntry entry = RowIndexEntry.create(123, new DeletionTime(123, 123), ColumnIndex.nothing()); long size = entry.memorySize(); long size2 = meter.measureDeep(entry); Assert.assertEquals(size, size2); } @Test public void testRowCacheKey() { UUID id = UUID.randomUUID(); RowCacheKey key = new RowCacheKey(id, ByteBuffer.wrap(new byte[11])); long size = key.memorySize(); long size2 = meter.measureDeep(key) - meter.measureDeep(id); Assert.assertEquals(size, size2); } @Test public void testRowCacheSentinel() { RowCacheSentinel sentinel = new RowCacheSentinel(123); long size = sentinel.memorySize(); long size2 = meter.measureDeep(sentinel); Assert.assertEquals(size, size2); } }