Ichthyostega
d80966c1fb
After the actual processing functions are defined, the "next level" of test framework building is to find a way how these bare bone operations can be used easily from a test with the goal to ''build and invoke a Render-Node'' * we need some descriptor * the bare bone operation must be packaged into an ''Invocation-Adapter'' * we need some means to configure variants of the setup
290 lines
9.6 KiB
C++
290 lines
9.6 KiB
C++
/*
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NodeDevel(Test) - Render Node development and test support
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Copyright (C)
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2024, Hermann Vosseler <Ichthyostega@web.de>
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**Lumiera** is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2 of the License, or (at your
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option) any later version. See the file COPYING for further details.
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* *****************************************************************/
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/** @file node-devel-test.cpp
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** unit test \ref NodeDevel_test
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*/
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#include "lib/test/run.hpp"
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#include "lib/hash-combine.hpp"
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#include "lib/test/test-helper.hpp"
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#include "steam/engine/test-rand-ontology.hpp" ///////////TODO
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#include "lib/test/diagnostic-output.hpp"/////////////////TODO
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#include "lib/iter-zip.hpp"
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#include "lib/random.hpp"
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//#include "lib/util.hpp"
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#include <vector>
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using lib::zip;
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using lib::izip;
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using std::vector;
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namespace steam {
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namespace engine{
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namespace test {
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namespace {
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/** uninitialised local storage that can be passed
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* as working buffer and accessed as TestFrame */
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struct Buffer
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: util::NonCopyable
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{
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alignas(TestFrame)
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std::byte storage[sizeof(TestFrame)];
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operator TestFrame* () { return std::launder (reinterpret_cast<TestFrame* > (&storage)); }
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TestFrame* operator->() { return std::launder (reinterpret_cast<TestFrame* > (&storage)); }
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TestFrame& operator* () { return * std::launder (reinterpret_cast<TestFrame* > (&storage)); }
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TestFrame&
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buildData (uint seq=0, uint family=0)
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{
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return * new(&storage) TestFrame{seq,family};
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}
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};
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}
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/***************************************************************//**
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* @test verify support for developing Render Node functionality.
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*/
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class NodeDevel_test : public Test
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{
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virtual void
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run (Arg)
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{
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seedRand();
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TestFrame::reseed();
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processing_generateFrame();
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processing_generateMultichan();
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processing_duplicateMultichan();
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processing_manipulateMultichan();
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processing_manipulateFrame();
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processing_combineFrames();
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testRand_simpleUsage();
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}
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/** @test function to generate random test data frames
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*/
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void
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processing_generateFrame()
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{
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size_t frameNr = defaultGen.u64();
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uint flavour = defaultGen.u64();
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Buffer buff;
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CHECK (not buff->isSane());
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generateFrame (buff, frameNr, flavour);
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CHECK ( buff->isSane());
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CHECK ( buff->isPristine());
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CHECK (*buff == TestFrame(frameNr,flavour));
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}
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/** @test function to generate an array of random test data frames
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* for consecutive channels
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*/
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void
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processing_generateMultichan()
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{
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size_t frameNr = defaultGen.u64();
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uint flavour = defaultGen.u64();
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uint channels = 1 + rani(50);
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CHECK (1 <= channels and channels <= 50);
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Buffer buff[50];
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for (uint i=0; i<channels; ++i)
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CHECK (not buff[i]->isSane());
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generateMultichan (buff[0], channels, frameNr, flavour);
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for (uint i=0; i<channels; ++i)
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{
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CHECK (buff[i]->isPristine());
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CHECK (*(buff[i]) == TestFrame(frameNr,flavour+i));
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}
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}
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/** @test clone copy of multichannel test data */
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void
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processing_duplicateMultichan()
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{
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size_t frameNr = defaultGen.u64();
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uint flavour = defaultGen.u64();
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uint channels = 1 + rani(50);
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Buffer srcBuff[50];
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generateMultichan (srcBuff[0], channels, frameNr, flavour);
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Buffer clone[50];
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for (uint i=0; i<channels; ++i)
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CHECK (not clone[i]->isSane());
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duplicateMultichan (clone[0],srcBuff[0], channels);
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for (uint i=0; i<channels; ++i)
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{
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CHECK (clone[i]->isPristine());
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CHECK (*(clone[i]) == *(srcBuff[i]));
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}
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}
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/** @test multichannel data hash-chain manipulation
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* - use multichannel pseudo random input data
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* - store away a clone copy before manipulation
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* - the #manipulateMultichan() operates in-place in the buffers
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* - each buffer has been marked with a new checksum afterwards
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* - and each buffer now differs from original state
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* - verify that corresponding data points over all channels
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* have been linked by a hashcode-chain, seeded with the `param`
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* and then consecutively hashing in data from each channel.
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*/
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void
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processing_manipulateMultichan()
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{
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size_t frameNr = defaultGen.u64();
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uint flavour = defaultGen.u64();
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uint channels = 1 + rani(50);
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Buffer buff[50], refData[50];
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generateMultichan (buff[0], channels, frameNr, flavour);
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// stash away a copy of the test data for verification
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duplicateMultichan(refData[0],buff[0], channels);
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for (uint c=0; c<channels; ++c)
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CHECK (buff[c]->isPristine());
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uint64_t param = defaultGen.u64();
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manipulateMultichan(buff[0], channels, param);
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const uint SIZ = buff[0]->data64().size();
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vector<uint64_t> xlink(SIZ, param); // temporary storage for verifying the hash-chain
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for (uint c=0; c<channels; ++c)
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{
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CHECK (buff[c]->isSane()); // checksum matches
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CHECK (not buff[c]->isPristine()); // data was indeed changed
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CHECK (*(buff[c]) != *(refData[c]));
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for (auto& [i, link] : izip(xlink))
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{
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auto const& refPoint = refData[c]->data64()[i];
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lib::hash::combine (link, refPoint);
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CHECK (link != refPoint);
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CHECK (link == buff[c]->data64()[i]);
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}
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}
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}
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/** @test function to apply a numeric computation to test data frames;
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* @remark here basically the same hash-chaining is used as for #manipulateMultichan,
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* but only one hash-chain per data point is used and output is written to a different buffer.
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*/
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void
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processing_manipulateFrame()
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{
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size_t frameNr = defaultGen.u64();
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uint flavour = defaultGen.u64();
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Buffer iBuff, oBuff;
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iBuff.buildData(frameNr,flavour);
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oBuff.buildData(frameNr,flavour);
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CHECK (iBuff->isPristine());
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CHECK (oBuff->isPristine());
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uint64_t param = defaultGen.u64();
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manipulateFrame (oBuff, iBuff, param);
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CHECK ( oBuff->isValid());
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CHECK (not oBuff->isPristine());
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CHECK ( iBuff->isPristine());
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for (auto [iDat,oDat] : zip (iBuff->data64()
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,oBuff->data64()))
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{
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CHECK (oDat != iDat);
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uint64_t feed = param;
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lib::hash::combine (feed, iDat);
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CHECK (feed != param);
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CHECK (feed != iDat);
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CHECK (feed == oDat);
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}
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// can also process in-place
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manipulateFrame (iBuff, iBuff, param);
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CHECK (not iBuff->isPristine());
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CHECK ( iBuff->isValid());
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CHECK (*iBuff == *oBuff); // second invocation exactly reproduced data from first invocation
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}
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/** @test function to mix two test data frames
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*/
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void
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processing_combineFrames()
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{
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size_t frameNr = defaultGen.u64();
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uint flavour = defaultGen.u64();
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Buffer i1Buff, i2Buff, oBuff;
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i1Buff.buildData(frameNr,flavour+0);
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i2Buff.buildData(frameNr,flavour+1);
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oBuff.buildData();
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CHECK (i1Buff->isPristine());
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CHECK (i2Buff->isPristine());
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CHECK (oBuff->isPristine());
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double mix = defaultGen.uni();
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combineFrames (oBuff, i1Buff, i2Buff, mix);
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CHECK ( oBuff->isValid());
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CHECK (not oBuff->isPristine());
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CHECK ( i1Buff->isPristine());
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CHECK ( i2Buff->isPristine());
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for (auto [oDat,i1Dat,i2Dat] : zip (oBuff->data()
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,i1Buff->data()
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,i2Buff->data()))
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CHECK (oDat == std::lround((1-mix)*i1Dat + mix*i2Dat));
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// can also process in-place
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combineFrames (i1Buff, i1Buff, i2Buff, mix);
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CHECK (not i1Buff->isPristine());
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CHECK ( i1Buff->isValid());
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CHECK (*i1Buff == *oBuff); // second invocation exactly reproduced data from first invocation
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}
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/** @test demonstrate simple usage of test-render setup
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* - access the TestRandOntology as singleton
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* - create a Spec record
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*/
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void
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testRand_simpleUsage()
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{
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auto spec = testRand().setupGenerator();
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SHOW_EXPR(spec.PROTO);
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CHECK (spec.PROTO == "generate-TestFrame"_expect);
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}
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};
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/** Register this test class... */
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LAUNCHER (NodeDevel_test, "unit node");
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}}} // namespace steam::engine::test
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