Ichthyostega
acc77654d1
after all the relevant library components do support both kinds of type sequences transparently, any usages in core code can now be switched over to the new, variadic type sequences.
144 lines
5.1 KiB
C++
144 lines
5.1 KiB
C++
/*
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BuilderTool(Test) - specialised visitor used within the builder for processing Placements
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Copyright (C)
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2008, 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 builder-tool-test.cpp
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** unit test \ref BuilderTool_test
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*/
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#include "lib/test/run.hpp"
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#include "steam/mobject/builder/buildertool.hpp"
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#include "steam/mobject/placement.hpp"
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#include "steam/asset/category.hpp"
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#include "steam/asset/media.hpp"
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#include "steam/mobject/session/clip.hpp"
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#include "steam/mobject/test-dummy-mobject.hpp"
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#include "vault/media-access-mock.hpp"
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#include "lib/depend-inject.hpp"
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#include "lib/format-cout.hpp"
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#include "lib/util.hpp"
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using std::string;
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namespace steam {
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namespace mobject {
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namespace builder {
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namespace test {
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using session::Clip;
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using session::AbstractMO;
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using namespace mobject::test;
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using MediaAccessMock = lib::DependInject<vault::MediaAccessFacade>
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::Local<vault::test::MediaAccessMock>;
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/**
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* BuilderTool implementation for checking the invocation of the correct
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* \c treat() function and for accessing the original Placement from
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* within this invocation. It is declared to be applicable to Clip
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* and DummyMO objects (wrapped into any acceptable shared-ptr).
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* Intentionally, we omit to declare it applicable to TestSubMO2 instances.
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* In reality this would be a case of misconfiguration, because TestSubMO2
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* is defined to be processable and consequently has an `apply()` function,
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* which, due to this omission can't find a dispatcher entry when invoked,
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* so it will call the \c onUnknown(Buildable&) instead
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*/
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class TestTool
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: public Applicable<TestTool, TySeq<Clip, DummyMO>::List>
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{
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public:
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string log_;
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void treat (Clip& c)
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{
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Placement<Clip>& pC = getPlacement<Clip>();
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cout << "Clip on media : "<< pC->getMedia() <<"\n";
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CHECK (pC->operator==(c));
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log_ = string (pC);
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}
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void treat (AbstractMO&)
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{
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cout << "treat (AbstractMO&);\n";
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log_ = string (getPlacement<MObject>());
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}
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void onUnknown (Buildable&)
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{
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cout << "catch-all-function called...\n";
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log_ = string (getPlacement<MObject>());
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}
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};
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/*********************************************************************************//**
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* @test the generic visitor pattern specialised for treating MObjects in the builder.
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* Besides using existing MObject types (at the moment session::Clip),
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* we create a yet-unknown new MObject subclass. When passing such to any
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* BuilderTool subclass, the compiler enforces the definition of a catch-all
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* function, which is called, when there is no other applicable \c treat(MO&)
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* function. Note further, within the specific treat-functions we get direct
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* references, without interfering with Placements and memory management.
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* But from within the \c treat() function, we may access the wrapper object
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* (i.e. shared_ptr, or lumiera::P or Placement) used when invoking the
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* BuilderTool by using the protected interface on BuilderTool.
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*
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* @see VisitingTool_test for checking general visitor functionality
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*/
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class BuilderTool_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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MediaAccessMock useMockMedia;
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TestTool t1;
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BuilderTool& tool = t1;
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Placement<Clip> clip = asset::Media::create("test-1", asset::VIDEO)->createClip();
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TestPlacement<> test1(*new TestSubMO1);
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TestPlacement<> test2(*new TestSubMO2);
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cout << "apply (tool, clip);\n";
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apply (tool, clip);
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INFO (test, "got Wrapper = %s", t1.log_.c_str());
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CHECK (t1.log_ == string(clip));
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cout << "apply (tool, test1);\n";
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apply (tool, test1);
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INFO (test, "got Wrapper = %s", t1.log_.c_str());
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CHECK (t1.log_ == string(test1));
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cout << "apply (tool, test2);\n";
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apply (tool, test2);
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INFO (test, "got Wrapper = %s", t1.log_.c_str());
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CHECK (t1.log_ == string(test2));
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}
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};
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/** Register this test class... */
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LAUNCHER (BuilderTool_test, "unit builder");
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}}}} // namespace steam::mobject::builder::test
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