Ichthyostega
03e87d4d33
as usual, the compiler was right in most cases Several typedefs are really just leftovers from copy-n-paste
159 lines
3.7 KiB
C++
159 lines
3.7 KiB
C++
/*
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SingletonTestMock(Test) - using Singleton for injecting Test-Mocks
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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/depend.hpp"
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#include "lib/util.hpp"
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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 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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* Client Class normally to be instantiated as Singleton.
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* But for tests, this class should be replaced by a Mock....
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*/
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class TestSingletonO
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{
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int callCnt_;
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Symbol typid_;
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format msg_;
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public:
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TestSingletonO(Symbol ty="TestSingletonO")
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: callCnt_(0)
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, typid_(ty)
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, msg_("%s::doIt() call=%d\n")
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{
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TRACE (test, "ctor %s", typid_.c());
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}
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virtual
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~TestSingletonO()
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{
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TRACE (test, "dtor %s", typid_.c());
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}
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void doIt ()
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{
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++callCnt_;
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cout << msg_ % typid_ % callCnt_;
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}
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int getCnt ()
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{
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return callCnt_;
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}
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};
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/**
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* Mock-1 to replace the Client Class...
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*/
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struct Mock_1 : TestSingletonO
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{
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Mock_1() : TestSingletonO("Mock_1") { };
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};
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/**
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* Mock-2 to replace the Client Class...
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*/
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struct Mock_2 : TestSingletonO
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{
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Mock_2() : TestSingletonO("Mock_2") { };
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};
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/***************************************************************//**
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* @test inject a Mock object into the Singleton Factory,
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* to be returned and used in place of the original object.
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* This test covers the full usage cycle: first access the
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* Client Object, then replace it by two different mocks,
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* and finally restore the original Client Object.
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* @see lib::Depend
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* @see lib::test::Depend4Test
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* @see DependencyFactory_test
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*/
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class SingletonTestMock_test : public Test
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{
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void
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run (Arg)
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{
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Depend<TestSingletonO> sing;
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sing().doIt();
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sing().doIt();
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CHECK (sing().getCnt() == 2);
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Mock_1 mock_1;
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TestSingletonO* original =
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sing.injectReplacement (&mock_1);
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sing().doIt();
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sing().doIt();
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sing().doIt();
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sing().doIt();
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sing().doIt();
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CHECK (sing().getCnt() == 5);
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Mock_2 mock_2;
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sing.injectReplacement (&mock_2);
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sing().doIt();
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CHECK (sing().getCnt() == 1);
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sing.injectReplacement (original); // un-shadowing original instance
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CHECK (sing().getCnt() == 2);
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sing().doIt();
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CHECK (sing().getCnt() == 3);
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}
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};
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/** Register this test class... */
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LAUNCHER (SingletonTestMock_test, "unit common");
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}} // namespace lib::test
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