Ichthyostega
806db414dd
* Lumiera source code always was copyrighted by individual contributors * there is no entity "Lumiera.org" which holds any copyrights * Lumiera source code is provided under the GPL Version 2+ == Explanations == Lumiera as a whole is distributed under Copyleft, GNU General Public License Version 2 or above. For this to become legally effective, the ''File COPYING in the root directory is sufficient.'' The licensing header in each file is not strictly necessary, yet considered good practice; attaching a licence notice increases the likeliness that this information is retained in case someone extracts individual code files. However, it is not by the presence of some text, that legally binding licensing terms become effective; rather the fact matters that a given piece of code was provably copyrighted and published under a license. Even reformatting the code, renaming some variables or deleting parts of the code will not alter this legal situation, but rather creates a derivative work, which is likewise covered by the GPL! The most relevant information in the file header is the notice regarding the time of the first individual copyright claim. By virtue of this initial copyright, the first author is entitled to choose the terms of licensing. All further modifications are permitted and covered by the License. The specific wording or format of the copyright header is not legally relevant, as long as the intention to publish under the GPL remains clear. The extended wording was based on a recommendation by the FSF. It can be shortened, because the full terms of the license are provided alongside the distribution, in the file COPYING.
164 lines
3.9 KiB
C++
164 lines
3.9 KiB
C++
/*
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SingletonTestMock(Test) - using Singleton for injecting Test-Mocks
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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 singleton-testmock-test.cpp
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** unit test \ref SingletonTestMock_test
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*/
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#include "lib/test/run.hpp"
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#include "lib/depend-inject.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 TestSingO
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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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TestSingO(Symbol ty="TestSingO")
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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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~TestSingO()
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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 : TestSingO
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{
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Mock_1() : TestSingO("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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* @note no default ctor
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*/
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struct Mock_2 : TestSingO
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{
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int id;
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Mock_2(Literal specialID, int i)
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: TestSingO{Symbol (_Fmt{"%s_%d"} % specialID % i)}
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, id{i}
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{ };
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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 depend-inject.hpp
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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<TestSingO> 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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{
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// shadow by local Mock instance
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DependInject<TestSingO>::Local<Mock_1> 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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// shadow again by different local Mock, this time with special ctor call
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int instanceID = 0;
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DependInject<TestSingO>::Local<Mock_2> mock_2 ([&]{ return new Mock_2{"Mock", instanceID}; });
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// NOTE: the ctor call for the Mock really happens delayed...
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instanceID = rani(10);
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sing().doIt(); // ctor invoked on first access
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CHECK (sing().getCnt() == 1);
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// can access the Mock for instrumentation
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CHECK (instanceID == mock_2->id);
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}// original instance automatically un-shadowed here
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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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