PoolArenaTest.java — netty Source File

Source Code

/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project 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:
 *
 *   https://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 io.netty.buffer;

import org.junit.jupiter.api.Test;

import java.nio.ByteBuffer;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertTrue;

public class PoolArenaTest {

    private static final int PAGE_SIZE = 8192;
    private static final int PAGE_SHIFTS = 11;
    //chunkSize = pageSize * (2 ^ pageShifts)
    private static final int CHUNK_SIZE = 16777216;

    @Test
    public void testNormalizeCapacity() {
        SizeClasses sc = new SizeClasses(PAGE_SIZE, PAGE_SHIFTS, CHUNK_SIZE, 0);
        PoolArena<ByteBuffer> arena = new PoolArena.DirectArena(null, sc);
        int[] reqCapacities = {0, 15, 510, 1024, 1023, 1025};
        int[] expectedResult = {16, 16, 512, 1024, 1024, 1280};
        for (int i = 0; i < reqCapacities.length; i ++) {
            assertEquals(expectedResult[i],
                    arena.sizeClass.sizeIdx2size(arena.sizeClass.size2SizeIdx(reqCapacities[i])));
        }
    }

    @Test
    public void testNormalizeAlignedCapacity() {
        SizeClasses sc = new SizeClasses(PAGE_SIZE, PAGE_SHIFTS, CHUNK_SIZE, 64);
        PoolArena<ByteBuffer> arena = new PoolArena.DirectArena(null, sc);
        int[] reqCapacities = {0, 15, 510, 1024, 1023, 1025};
        int[] expectedResult = {64, 64, 512, 1024, 1024, 1280};
        for (int i = 0; i < reqCapacities.length; i ++) {
            assertEquals(expectedResult[i],
                    arena.sizeClass.sizeIdx2size(arena.sizeClass.size2SizeIdx(reqCapacities[i])));
        }
    }

    @Test
    public void testSize2SizeIdx() {
        SizeClasses sc = new SizeClasses(PAGE_SIZE, PAGE_SHIFTS, CHUNK_SIZE, 0);
// ... (117 more lines)