LUMIERA.clone/tests/library/typed-allocation-manager-test.cpp
2025-06-07 23:59:57 +02:00

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/*
TypedAllocationManager(Test) - check interface to pooled allocations
Copyright (C)
2009, Hermann Vosseler <Ichthyostega@web.de>
  **Lumiera** is free software; you can redistribute it and/or modify it
  under the terms of the GNU General Public License as published by the
  Free Software Foundation; either version 2 of the License, or (at your
  option) any later version. See the file COPYING for further details.
* *****************************************************************/
/** @file typed-allocation-manager-test.cpp
** unit test \ref TypedAllocationManager_test
*/
#include "lib/test/run.hpp"
#include "lib/typed-allocation-manager.hpp"
#include "lib/util.hpp"
#include <memory>
namespace lib {
namespace test{
using util::isSameObject;
using std::shared_ptr;
namespace { // test data and helpers...
long checksum_ = 0;
/**
* Yet-another ctor/dtor-tracking test dummy object....
*/
template<uint siz>
class DummyObj
{
char crap_[siz];
public:
DummyObj()
{
REQUIRE (siz);
for (uint i=0; i<siz; ++i)
checksum_ += (crap_[i] = rani(128));
}
~DummyObj()
{
for (uint i=0; i<siz; ++i)
checksum_ -= crap_[i];
}
};
}
/***********************************************************************************//**
* @test cover the basic implementation of a custom allocator, delegating to mpool.
* TypedAllocationManager is a base class, used e.g. to build the CommandRegistry.
*
* @todo as of 9/09 we do heap allocation, but we should use mpool -- see also Ticket #219
*
* @see CommandRegistry
* @see command-registry-test.cpp
* @see allocation-cluster-test.cpp
*/
class TypedAllocationManager_test : public Test
{
virtual void
run (Arg)
{
CHECK (0 == checksum_);
seedRand();
TypedAllocationManager allocator;
typedef shared_ptr<DummyObj<1>> PD1;
typedef shared_ptr<DummyObj<22>> PD22;
CHECK (sizeof(DummyObj<1>) != sizeof(DummyObj<22>));
{
PD1 pD11 = allocator.create<DummyObj<1> >();
PD1 pD12 = allocator.create<DummyObj<1> >();
PD22 pD21 = allocator.create<DummyObj<22>>();
PD22 pD22 = allocator.create<DummyObj<22>>();
CHECK (pD11);
CHECK (pD12);
CHECK (pD21);
CHECK (pD22);
CHECK (1 == pD11.use_count());
CHECK (1 == pD12.use_count());
CHECK (1 == pD21.use_count());
CHECK (1 == pD22.use_count());
CHECK (!isSameObject (*pD11, *pD12));
CHECK (!isSameObject (*pD11, *pD21));
CHECK (!isSameObject (*pD11, *pD22));
CHECK (!isSameObject (*pD12, *pD21));
CHECK (!isSameObject (*pD12, *pD22));
CHECK (!isSameObject (*pD21, *pD22));
PD22 pD2x = pD21;
CHECK (pD2x);
CHECK (2 == pD21.use_count());
CHECK (2 == pD2x.use_count());
CHECK (isSameObject (*pD21, *pD2x));
CHECK (2 == allocator.numSlots<DummyObj<1> >());
CHECK (2 == allocator.numSlots<DummyObj<22>>());
CHECK (0 == allocator.numSlots<long>()); // query just some unrelated type...
}
CHECK (0 == allocator.numSlots<DummyObj<1> >());
CHECK (0 == allocator.numSlots<DummyObj<22>>());
CHECK (0 == checksum_);
}
};
/** Register this test class... */
LAUNCHER (TypedAllocationManager_test, "unit common");
}} // namespace lib::test