Ichthyostega
24b3bec4be
Doxygen will only process files with a @file documentation comment. Up to now, none of our test code has such a comment, preventing the cross-links to unit tests from working. This is unfortunate, since unit tests, and even the code comments there, can be considered as the most useful form of technical documentation. Thus I'll start an initiative to fill in those missing comments automatically
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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/** @file singleton-testmock-test.cpp
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** unit test §§TODO§§
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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 "lib/format-cout.hpp"
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#include "lib/format-string.hpp"
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using util::_Fmt;
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using util::isnil;
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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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_Fmt 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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