89 lines
2.7 KiB
C++
89 lines
2.7 KiB
C++
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/*
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OutputProxyProvider(Test) - verify accessing an output sink via BufferProvider protocol
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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 output-proxy-provider-test.cpp
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** unit test \ref OutputProxyProvider_test
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*/
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#include "lib/test/run.hpp"
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//#include "steam/play/diagnostic-output-slot.hpp"
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#include "steam/engine/buffer-proxy-provider.hpp"
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#include "steam/engine/test-rand-ontology.hpp"
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namespace steam {
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namespace engine{
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namespace test {
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/***************************************************************//**
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* @test verify the OutputSlot interface and base implementation
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* by performing full data exchange cycle. This is a
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* kind of "dry run" for documentation purposes,
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* both the actual OutputSlot implementation
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* as the client using this slot are Mocks.
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*/
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class OutputProxyProvider_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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size_t seenID{0};
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BufferState lastState{NIL};
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auto listener = [&](size_t id, BufferState state)
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{
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seenID = id;
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lastState = state;
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};
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// setup with notification callback
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BufferProxyProvider proxPro{listener};
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// Assuming some data block is »given«
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seedRand();
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TestFrame::reseed();
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size_t frameNr = defaultGen.u64();
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TestFrame dataBlock (frameNr);
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CHECK ( dataBlock.isPristine());
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BuffHandle handle = proxPro.lockBuffer (dataBlock);
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// Now a »client« can do awful things to the buffer...
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CHECK (handle.isValid());
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auto& data = handle.accessAs<TestFrame>();
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uint64_t param = defaultGen.u64();
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manipulateFrame (&data, &data, param);
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// »client« is done...
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handle.emit();
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// end usage cycle
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handle.release();
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CHECK (not handle.isValid());
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CHECK (not dataBlock.isPristine());
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CHECK ( dataBlock.isValid());
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}
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};
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/** Register this test class... */
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LAUNCHER (OutputProxyProvider_test, "unit play");
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}}} // namespace steam::play::test
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