testMem.cc

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/*
 * Copyright (C) 1996-2023 The Squid Software Foundation and contributors
 *
 * Squid software is distributed under GPLv2+ license and includes
 * contributions from numerous individuals and organizations.
 * Please see the COPYING and CONTRIBUTORS files for details.
 */
 
#include "squid.h"
#include "mem/forward.h"
#include "mem/Pool.h"
#include "tests/testMem.h"
#include "unitTestMain.h"
 
#include <iostream>
#include <stdexcept>
 
CPPUNIT_TEST_SUITE_REGISTRATION( testMem );
 
class SomethingToAlloc
{
public:
    int aValue;
};
 
class MoreToAlloc
{
    MEMPROXY_CLASS(MoreToAlloc);
 
public:
    int aValue = 0;
};
 
void
testMem::testMemPool()
{
    const auto Pool = memPoolCreate("Test Pool", sizeof(SomethingToAlloc));
    CPPUNIT_ASSERT(Pool);
 
    auto *something = static_cast<SomethingToAlloc *>(Pool->alloc());
    CPPUNIT_ASSERT(something);
    CPPUNIT_ASSERT_EQUAL(something->aValue, 0);
    something->aValue = 5;
    Pool->freeOne(something);
 
    // Pool should use the FreeList to allocate next object
    auto *otherthing = static_cast<SomethingToAlloc *>(Pool->alloc());
    CPPUNIT_ASSERT_EQUAL(otherthing, something);
    CPPUNIT_ASSERT_EQUAL(otherthing->aValue, 0);
    Pool->freeOne(otherthing);
 
    delete Pool;
}
 
void
testMem::testMemProxy()
{
    auto *something = new MoreToAlloc;
    CPPUNIT_ASSERT(something);
    CPPUNIT_ASSERT_EQUAL(something->aValue, 0);
    something->aValue = 5;
    delete something;
 
    // The MEMPROXY pool should use its FreeList to allocate next object
    auto *otherthing = new MoreToAlloc;
    CPPUNIT_ASSERT_EQUAL(otherthing, something);
    CPPUNIT_ASSERT_EQUAL(otherthing->aValue, 0);
}