| /* |
| * 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. |
| */ |
| package org.apache.cassandra.db; |
| |
| import java.nio.ByteBuffer; |
| import java.util.Arrays; |
| import java.util.Collection; |
| |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| import org.apache.cassandra.utils.ObjectSizes; |
| import org.apache.cassandra.utils.concurrent.ImmediateFuture; |
| import org.apache.cassandra.utils.concurrent.OpOrder; |
| import org.apache.cassandra.utils.memory.NativePool; |
| import org.assertj.core.api.Assertions; |
| |
| @RunWith(Parameterized.class) |
| public class ClusteringHeapSizeTest |
| { |
| private final Clustering<?> clustering; |
| |
| public ClusteringHeapSizeTest(Clustering<?> clustering) |
| { |
| this.clustering = clustering; |
| } |
| |
| @Test |
| public void unsharedHeap() |
| { |
| long measureDeep = ObjectSizes.measureDeep(clustering); |
| long unsharedHeapSize = clustering.unsharedHeapSize(); |
| |
| double allowedDiff = 0.1; // 10% is seen as "close enough" |
| Assertions.assertThat(unsharedHeapSize) |
| .describedAs("Real size is %d", measureDeep) |
| .isBetween((long) (measureDeep * (1 - allowedDiff)), (long) (measureDeep * (1 + allowedDiff))); |
| } |
| |
| @Test |
| public void unsharedHeapSizeExcludingDataLTEUnsharedHeapSize() |
| { |
| long max = clustering.unsharedHeapSize(); |
| long min = clustering.unsharedHeapSizeExcludingData(); |
| Assertions.assertThat(min).isLessThanOrEqualTo(max); |
| } |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static Collection<Object[]> data() { |
| byte[] rawBytes = { 0, 1, 2, 3, 4, 5, 6 }; |
| NativePool pool = new NativePool(1024, 1024, 1, () -> ImmediateFuture.success(true)); |
| OpOrder order = new OpOrder(); |
| |
| ArrayClustering array = ArrayClustering.make(rawBytes); |
| BufferClustering buffer = BufferClustering.make(ByteBuffer.wrap(rawBytes)); |
| return Arrays.asList(new Object[][] { |
| { array }, |
| { buffer }, |
| { new NativeClustering(pool.newAllocator(null), order.getCurrent(), array)} |
| }); |
| } |
| } |