Ichthyostega
d6786870f3
all these tests are ported by drop-in replacement and should work afterwards exactly as before (and they do indeed) A minor twist was spotted though (nice to have more unit tests indeed!): Sometimes we want to pass a custom constructor *not* as modern-style lambda, but rather as direct function reference, function pointer or even member function pointer. However, we can not store those types into the closure for later lazy invocation. This is basically the same twist I run into yesterday, when modernising the thread-wrapper. And the solution is similar. Our traits class _Fun<FUN> has a new typedef Functor with a suitable functor type to be instantiated and copied. In case of the Lambda this is the (anonymous) lamda class itself, but in case of a function reference or pointer it is a std::function.
109 lines
2.9 KiB
C++
109 lines
2.9 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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/** @file singleton-test.cpp
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** unit test \ref Singleton_test
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*/
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#include "lib/test/run.hpp"
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#include "lib/format-string.hpp"
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#include "lib/format-cout.hpp"
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#include "lib/util.hpp"
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#include "test-target-obj.hpp"
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#include "lib/depend2.hpp"
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#include <boost/lexical_cast.hpp>
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using boost::lexical_cast;
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using util::isSameObject;
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using util::_Fmt;
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using util::isnil;
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using std::string;
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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 lib::InstanceHolder<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: single instance created in static memory,
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* single instance properly destroyed, no memory leaks.
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* @see lib::Depend
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* @see lib::DependencyFactory::InstanceHolder
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*/
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class Singleton_test : public Test
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{
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virtual void
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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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Depend<TargetObj> singleton;
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cout << _Fmt("testing TargetObj(%d) as Singleton\n") % num;
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TargetObj::setCountParam(num);
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TargetObj& t1 = singleton();
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TargetObj& t2 = singleton();
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CHECK (isSameObject(t1, t2), "not a Singleton, got two different instances." );
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cout << "calling a non-static method on the Singleton instance" <<endl
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<< t1 << endl;
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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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