Ichthyostega
d00992ff70
It seems evident that the the problems with the existing BufferProvider implementation are rooted in a lack of understanding of the actual usage situation at that time(2011). This caused a »hexagonal design«, i.e. something entirely driven by uint testing for the sake of unit testing. So to identify the unsuitable decisions, some degree of deductive work is necessary, based on our much better understanding of the Render Engine. A crucial challenge is that buffer management must perform well within a massively concurrent environment, and do so without excessive latency.
102 lines
2.6 KiB
C++
102 lines
2.6 KiB
C++
/*
|
||
EngineCtx(Test) - calculation of (internal) buffer metadata type keys
|
||
|
||
Copyright (C)
|
||
2026, 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 engine-ctx-test.cpp
|
||
** unit test \ref EngineCtx_test
|
||
*/
|
||
|
||
|
||
#include "lib/error.hpp"
|
||
#include "lib/test/run.hpp"
|
||
#include "lib/test/test-helper.hpp"
|
||
#include "steam/engine/engine-ctx.hpp"
|
||
#include "steam/engine/buffer-provider.hpp"
|
||
//#include "steam/engine/engine-ctx-facilities.hpp" //////////TODO required?
|
||
#include "lib/util.hpp"
|
||
|
||
//#include <limits>
|
||
|
||
//using util::isnil;
|
||
using util::isSameObject;
|
||
|
||
|
||
namespace steam {
|
||
namespace engine{
|
||
namespace test {
|
||
|
||
namespace { // Test fixture
|
||
|
||
|
||
}//(End) Test helpers
|
||
|
||
using LERR_(LIFECYCLE);
|
||
|
||
|
||
|
||
|
||
/*****************************************************************************//**
|
||
* @test verify context with generic management services for Dependency Injection,
|
||
* used within the Render Node Network to hide global setup state.
|
||
*/
|
||
class EngineCtx_test : public Test
|
||
{
|
||
|
||
|
||
virtual void
|
||
run (Arg)
|
||
{
|
||
// seedRand();
|
||
simpleUsage();
|
||
}
|
||
|
||
|
||
void
|
||
simpleUsage()
|
||
{
|
||
auto& ctx = EngineCtx::access;
|
||
BufferProvider& provider = ctx().mem;
|
||
|
||
// in the default config (for tests) there is no separate cache provider
|
||
CHECK (isSameObject (provider, ctx().cache));
|
||
|
||
BuffHandle buff = provider.lockBufferFor<int>();
|
||
CHECK (buff.isValid());
|
||
CHECK (sizeof(int) <= buff.size());
|
||
|
||
buff.accessAs<int>() = -LIFE_AND_UNIVERSE_4EVER;
|
||
CHECK (buff.accessAs<int>() == -int(LIFE_AND_UNIVERSE_4EVER));
|
||
|
||
uint alternativeTruth = buff.accessAs<uint>();
|
||
CHECK (alternativeTruth == -LIFE_AND_UNIVERSE_4EVER);
|
||
|
||
buff.release();
|
||
CHECK (not buff.isValid());
|
||
VERIFY_ERROR (LIFECYCLE, buff.accessAs<int>() );
|
||
}
|
||
|
||
|
||
/** @todo automagically post on X with lots of UPERCASE LETTERS */
|
||
void
|
||
verify_disaster()
|
||
{
|
||
UNIMPLEMENTED ("general meltdown");
|
||
}
|
||
};
|
||
|
||
|
||
/** Register this test class... */
|
||
LAUNCHER (EngineCtx_test, "unit engine");
|
||
|
||
|
||
|
||
}}} // namespace steam::engine::test
|