Ichthyostega
ada5cefaaf
the buildsystem will now pick up and link all test cases according to the layer, e.g. backend tests will automatically be linked against the backend + library solely.
449 lines
13 KiB
C++
449 lines
13 KiB
C++
/*
|
|
LinkedElements(Test) - verify the intrusive single linked list template
|
|
|
|
Copyright (C) Lumiera.org
|
|
2012, Hermann Vosseler <Ichthyostega@web.de>
|
|
|
|
This program 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.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
* *****************************************************/
|
|
|
|
|
|
|
|
#include "lib/test/run.hpp"
|
|
#include "lib/test/test-helper.hpp"
|
|
#include "lib/util.hpp"
|
|
|
|
#include "lib/allocation-cluster.hpp"
|
|
#include "lib/linked-elements.hpp"
|
|
#include "lib/test/testdummy.hpp"
|
|
#include "lib/iter-source.hpp"
|
|
|
|
#include <tr1/memory>
|
|
|
|
|
|
|
|
namespace lib {
|
|
namespace test{
|
|
|
|
namespace error = lumiera::error;
|
|
|
|
using util::isnil;
|
|
using util::isSameObject;
|
|
using lumiera::error::LUMIERA_ERROR_ITER_EXHAUST;
|
|
|
|
|
|
namespace { // test data...
|
|
|
|
LUMIERA_ERROR_DEFINE(PROVOKED_FAILURE, "provoked failure");
|
|
|
|
const uint NUM_ELEMENTS = 500;
|
|
int exception_trigger = -1;
|
|
|
|
inline void __triggerErrorAt(int i) { exception_trigger = i; }
|
|
inline void __triggerError_reset() { exception_trigger =-1; }
|
|
|
|
|
|
/**
|
|
* Test-Element, supporting intrusive linked list storage.
|
|
* Also tracks ctor/dtor calls by virtue of the Dummy baseclass.
|
|
*/
|
|
struct Nummy
|
|
: Dummy
|
|
{
|
|
Nummy* next;
|
|
|
|
Nummy()
|
|
: Dummy()
|
|
, next(0)
|
|
{ }
|
|
|
|
explicit
|
|
Nummy (int i)
|
|
: Dummy(i)
|
|
, next(0)
|
|
{
|
|
if (i == exception_trigger)
|
|
throw error::Fatal("simulated error", LUMIERA_ERROR_PROVOKED_FAILURE);
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* to demonstrate holding subclasses
|
|
*/
|
|
template<uint I>
|
|
struct Num
|
|
: Nummy
|
|
{
|
|
void* storage[I]; // note size depends on template parameter
|
|
|
|
Num (int i=0, int j=0, int k=0)
|
|
: Nummy(I+i+j+k)
|
|
{ }
|
|
};
|
|
|
|
|
|
|
|
/**
|
|
* Helper to produce a pre-determined series
|
|
* of objects to populate a LinkedElements list.
|
|
* @note just happily heap allocating new instances
|
|
* and handing them out. The LinkedElements list
|
|
* will take ownership of them and care for
|
|
* clean de-allocation.
|
|
*/
|
|
class NummyGenerator
|
|
: public IterSource<Nummy>
|
|
{
|
|
uint maxNum_;
|
|
|
|
virtual Pos
|
|
firstResult()
|
|
{
|
|
return new Nummy(1);
|
|
}
|
|
|
|
virtual void
|
|
nextResult(Pos& num)
|
|
{
|
|
uint current = num->getVal();
|
|
if (maxNum_ <= current)
|
|
num = 0;
|
|
else
|
|
num = new Nummy(current+1);
|
|
}
|
|
|
|
public:
|
|
NummyGenerator (uint maxElms)
|
|
: maxNum_(maxElms)
|
|
{ }
|
|
};
|
|
|
|
/** Iterator-Frontend to generate this series of objects */
|
|
class Populator
|
|
: public NummyGenerator::iterator
|
|
{
|
|
|
|
public:
|
|
explicit
|
|
Populator (uint numElms)
|
|
: NummyGenerator::iterator (
|
|
NummyGenerator::build (new NummyGenerator(numElms)))
|
|
{ }
|
|
};
|
|
|
|
|
|
|
|
|
|
inline uint
|
|
sum (uint n)
|
|
{
|
|
return n*(n+1) / 2;
|
|
}
|
|
|
|
}//(End) subversive test data
|
|
|
|
|
|
|
|
|
|
|
|
/// default case: ownership for heap allocated nodes
|
|
typedef LinkedElements<Nummy> List;
|
|
|
|
/// managing existing node elements without taking ownership
|
|
typedef LinkedElements<Nummy, linked_elements::NoOwnership> ListNotOwner;
|
|
|
|
/// creating nodes in-place, using a custom allocator for creation and disposal
|
|
typedef LinkedElements<Nummy, linked_elements::UseAllocationCluster> ListCustomAllocated;
|
|
|
|
|
|
|
|
/********************************************************************
|
|
* @test cover our custom single linked list template,
|
|
* in combination with Lumiera Forward Iterators
|
|
* and the usage of a custom allocator.
|
|
*/
|
|
class LinkedElements_test : public Test
|
|
{
|
|
|
|
virtual void
|
|
run (Arg)
|
|
{
|
|
simpleUsage();
|
|
iterating();
|
|
|
|
verify_nonOwnership();
|
|
verify_ExceptionSafety();
|
|
populate_by_iterator();
|
|
verify_RAII_safety();
|
|
verify_customAllocator();
|
|
}
|
|
|
|
|
|
void
|
|
simpleUsage()
|
|
{
|
|
CHECK (0 == Dummy::checksum());
|
|
{
|
|
List elements;
|
|
CHECK (isnil (elements));
|
|
CHECK (0 == elements.size());
|
|
CHECK (0 == Dummy::checksum());
|
|
|
|
elements.pushNew<Nummy>(1);
|
|
elements.pushNew<Nummy>(2);
|
|
elements.pushNew<Nummy>(3);
|
|
elements.pushNew<Nummy>(4);
|
|
elements.pushNew<Nummy>(5);
|
|
CHECK (!isnil (elements));
|
|
CHECK (5 == elements.size());
|
|
CHECK (0 != Dummy::checksum());
|
|
|
|
CHECK (Dummy::checksum() == elements[0].getVal()
|
|
+ elements[1].getVal()
|
|
+ elements[2].getVal()
|
|
+ elements[3].getVal()
|
|
+ elements[4].getVal());
|
|
|
|
elements.clear();
|
|
CHECK (isnil (elements));
|
|
CHECK (0 == elements.size());
|
|
CHECK (0 == Dummy::checksum());
|
|
|
|
elements.pushNew<Nummy>();
|
|
elements.pushNew<Nummy>();
|
|
elements.pushNew<Nummy>();
|
|
|
|
CHECK (3 == elements.size());
|
|
CHECK (0 != Dummy::checksum());
|
|
}
|
|
CHECK (0 == Dummy::checksum());
|
|
}
|
|
|
|
|
|
void
|
|
iterating()
|
|
{
|
|
CHECK (0 == Dummy::checksum());
|
|
{
|
|
List elements;
|
|
for (uint i=1; i<=NUM_ELEMENTS; ++i)
|
|
elements.pushNew<Nummy>(i);
|
|
|
|
// since elements where pushed,
|
|
// they should appear in reversed order
|
|
int check=NUM_ELEMENTS;
|
|
List::iterator ii = elements.begin();
|
|
while (ii)
|
|
{
|
|
CHECK (check == ii->getVal());
|
|
CHECK (check == ii->acc(+5) - 5);
|
|
--check;
|
|
++ii;
|
|
}
|
|
CHECK (0 == check);
|
|
|
|
|
|
// Test the const iterator
|
|
List const& const_elm (elements);
|
|
check = NUM_ELEMENTS;
|
|
List::const_iterator cii = const_elm.begin();
|
|
while (cii)
|
|
{
|
|
CHECK (check == cii->getVal());
|
|
--check;
|
|
++cii;
|
|
}
|
|
CHECK (0 == check);
|
|
|
|
|
|
// Verify correct behaviour of iteration end
|
|
CHECK (! (elements.end()));
|
|
CHECK (isnil (elements.end()));
|
|
|
|
VERIFY_ERROR (ITER_EXHAUST, *elements.end() );
|
|
VERIFY_ERROR (ITER_EXHAUST, ++elements.end() );
|
|
|
|
CHECK (ii == elements.end());
|
|
CHECK (ii == List::iterator());
|
|
CHECK (cii == elements.end());
|
|
CHECK (cii == List::const_iterator());
|
|
VERIFY_ERROR (ITER_EXHAUST, ++ii );
|
|
VERIFY_ERROR (ITER_EXHAUST, ++cii );
|
|
|
|
}
|
|
CHECK (0 == Dummy::checksum());
|
|
}
|
|
|
|
|
|
/** @test add some node elements to the LinkedElements list
|
|
* but without taking ownership or performing any
|
|
* memory management. This usage pattern is helpful
|
|
* when the node elements are already managed elsewhere.
|
|
* @note we're still (intrusively) using the next pointer
|
|
* within the node elements. This means, that still
|
|
* a given node can't be member in multiple lists.
|
|
*/
|
|
void
|
|
verify_nonOwnership()
|
|
{
|
|
CHECK (0 == Dummy::checksum());
|
|
{
|
|
ListNotOwner elements;
|
|
CHECK (isnil (elements));
|
|
|
|
Num<22> n2;
|
|
Num<44> n4;
|
|
Num<66> n6;
|
|
CHECK (22+44+66 == Dummy::checksum());
|
|
|
|
elements.push(n2);
|
|
elements.push(n4);
|
|
elements.push(n6);
|
|
CHECK (!isnil (elements));
|
|
CHECK (3 == elements.size());
|
|
CHECK (22+44+66 == Dummy::checksum()); // not altered: we're referring the originals
|
|
|
|
CHECK (66 == elements[0].getVal());
|
|
CHECK (44 == elements[1].getVal());
|
|
CHECK (22 == elements[2].getVal());
|
|
CHECK (isSameObject(n2, elements[2]));
|
|
CHECK (isSameObject(n4, elements[1]));
|
|
CHECK (isSameObject(n6, elements[0]));
|
|
|
|
elements.clear();
|
|
CHECK (isnil (elements));
|
|
CHECK (22+44+66 == Dummy::checksum()); // referred elements unaffected
|
|
}
|
|
CHECK (0 == Dummy::checksum());
|
|
}
|
|
|
|
|
|
void
|
|
verify_ExceptionSafety()
|
|
{
|
|
CHECK (0 == Dummy::checksum());
|
|
{
|
|
List elements;
|
|
CHECK (isnil (elements));
|
|
|
|
__triggerErrorAt(3);
|
|
|
|
elements.pushNew<Nummy>(1);
|
|
elements.pushNew<Nummy>(2);
|
|
CHECK (1+2 == Dummy::checksum());
|
|
|
|
VERIFY_ERROR (PROVOKED_FAILURE, elements.pushNew<Nummy>(3) );
|
|
CHECK (1+2 == Dummy::checksum());
|
|
CHECK (2 == elements.size());
|
|
|
|
CHECK (2 == elements[0].getVal());
|
|
CHECK (1 == elements[1].getVal());
|
|
|
|
elements.clear();
|
|
CHECK (0 == Dummy::checksum());
|
|
__triggerError_reset();
|
|
}
|
|
CHECK (0 == Dummy::checksum());
|
|
}
|
|
|
|
|
|
void
|
|
populate_by_iterator()
|
|
{
|
|
CHECK (0 == Dummy::checksum());
|
|
{
|
|
Populator yieldSomeElements(NUM_ELEMENTS);
|
|
List elements (yieldSomeElements);
|
|
|
|
CHECK (!isnil (elements));
|
|
CHECK (NUM_ELEMENTS == elements.size());
|
|
CHECK (sum(NUM_ELEMENTS) == Dummy::checksum());
|
|
|
|
int check=NUM_ELEMENTS;
|
|
List::iterator ii = elements.begin();
|
|
while (ii)
|
|
{
|
|
CHECK (check == ii->getVal());
|
|
--check;
|
|
++ii;
|
|
}
|
|
CHECK (0 == check);
|
|
}
|
|
CHECK (0 == Dummy::checksum());
|
|
}
|
|
|
|
|
|
/** @test to support using LinkedElements within RAII-style components,
|
|
* all the elements might be added in one sway, by pulling them
|
|
* from a Lumiera Forward Iterator. In case this is done in the
|
|
* ctor, any exception while doing so will trigger cleanup
|
|
* of all elements (and then failure of the ctor alltogether)
|
|
*/
|
|
void
|
|
verify_RAII_safety()
|
|
{
|
|
CHECK (0 == Dummy::checksum());
|
|
|
|
__triggerErrorAt(3);
|
|
Populator yieldSomeElements(NUM_ELEMENTS);
|
|
VERIFY_ERROR (PROVOKED_FAILURE, List elements(yieldSomeElements) );
|
|
|
|
CHECK (0 == Dummy::checksum());
|
|
__triggerError_reset();
|
|
}
|
|
|
|
|
|
void
|
|
verify_customAllocator()
|
|
{
|
|
CHECK (0 == Dummy::checksum());
|
|
{
|
|
AllocationCluster allocator;
|
|
|
|
ListCustomAllocated elements(allocator);
|
|
|
|
elements.pushNew<Num<1> > (2);
|
|
elements.pushNew<Num<3> > (4,5);
|
|
elements.pushNew<Num<6> > (7,8,9);
|
|
|
|
CHECK (sum(9) == Dummy::checksum());
|
|
CHECK (3 == allocator.size());
|
|
CHECK (1 == allocator.count<Num<1> >());
|
|
CHECK (1 == allocator.count<Num<3> >());
|
|
CHECK (1 == allocator.count<Num<6> >());
|
|
|
|
CHECK (3 == elements.size());
|
|
CHECK (1+2 == elements[2].getVal());
|
|
CHECK (3+4+5 == elements[1].getVal());
|
|
CHECK (6+7+8+9 == elements[0].getVal());
|
|
|
|
elements.clear();
|
|
CHECK (3 == allocator.size());
|
|
CHECK (sum(9) == Dummy::checksum());
|
|
// note: elements won't be discarded unless
|
|
// the AllocationCluster goes out of scope
|
|
}
|
|
CHECK (0 == Dummy::checksum());
|
|
}
|
|
};
|
|
|
|
|
|
|
|
LAUNCHER (LinkedElements_test, "unit common");
|
|
|
|
|
|
}} // namespace lib::test
|