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.
137 lines
3.8 KiB
C++
137 lines
3.8 KiB
C++
/*
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Singleton(Test) - unittest for our Singleton template
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Copyright (C) Lumiera.org
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2008, Hermann Vosseler <Ichthyostega@web.de>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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* *****************************************************/
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#include "lib/test/run.hpp"
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#include "lib/util.hpp"
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#include "testtargetobj.hpp"
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#include "lib/singleton.hpp"
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#include <tr1/functional>
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#include <boost/lexical_cast.hpp>
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#include <boost/format.hpp>
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#include <iostream>
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using std::tr1::function;
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using boost::lexical_cast;
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using boost::format;
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using util::isnil;
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using std::string;
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using std::cout;
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namespace lib {
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namespace test{
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/**
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* Target object to be instantiated as Singleton
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* Allocates a variable amount of additional heap memory
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* and prints diagnostic messages.
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*/
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class TargetObj : public TestTargetObj
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{
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public:
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static int cnt;
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static void setCountParam (uint c) { TargetObj::cnt = c; }
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protected:
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TargetObj () : TestTargetObj(cnt) {}
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friend class singleton::StaticCreate<TargetObj>;
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friend class singleton::HeapCreate<TargetObj>;
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};
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int TargetObj::cnt = 0;
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/*******************************************************************
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* @test implement a Singleton class using our Singleton Template.
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* Expected results: no memory leaks.
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* @see lib::Singleton
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* @see lib::singleton::StaticCreate
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* @see lib::singleton::HeapCreate
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*/
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class Singleton_test : public Test
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{
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typedef function<TargetObj& ()> InstanceAccessFunc;
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InstanceAccessFunc instance;
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virtual void run(Arg arg)
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{
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uint num= isnil(arg)? 1 : lexical_cast<uint>(arg[1]);
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testStaticallyAllocatedSingleton (num++);
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testHeapAllocatedSingleton (num++);
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}
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/** @test parametrise the Singleton creation such as to create
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* the single TargetObj instance as a static variable.
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*/
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void testStaticallyAllocatedSingleton (uint num)
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{
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SingletonFactory<TargetObj> single;
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instance = single;
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useInstance (num, "statically allocated");
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}
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/** @test parametrise the Singleton creation such as to create
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* the single TargetObj instance allocated on the Heap
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* and deleted automatically at application shutdown.
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*/
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void testHeapAllocatedSingleton (uint num)
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{
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SingletonFactory<TargetObj,singleton::HeapCreate> single;
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instance = single;
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useInstance (num, "heap allocated");
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}
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void useInstance (uint num, string kind)
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{
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cout << format("testing TargetObj(%d) as Singleton(%s)\n") % num % kind;
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TargetObj::setCountParam(num);
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TargetObj& t1 = instance();
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TargetObj& t2 = instance();
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CHECK ( &t1 == &t2, "not a Singleton, got two different instances." );
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cout << "calling a non-static method on the Singleton instance\n"
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<< string (t1) << "\n";
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}
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};
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/** Register this test class... */
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LAUNCHER (Singleton_test, "unit common");
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}} // namespace lib::test
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