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f63cf33118
* Header-only! * No external dependencies or other beast modules * Compilation options allow for: - Stand-alone application to run a single test suite - Stand-alone application to run a set of test suites - Global suite of tests inline with the host application - Disable test suite generation completely * Existing tests reworked to use the new classes
108 lines
2.7 KiB
C++
108 lines
2.7 KiB
C++
//-------------------- empty_base_optimization.test.cpp ------------------------
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/*
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This file is part of rippled: https://github.com/ripple/rippled
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Copyright (c) 2014 Ripple Labs Inc.
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#if BEAST_INCLUDE_BEASTCONFIG
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#include "../../../BeastConfig.h"
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#endif
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#include "../empty_base_optimization.h"
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#include "../../unit_test/suite.h"
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namespace beast {
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class empty_base_optimization_test
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: public unit_test::suite
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{
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public:
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template <class T>
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class test1
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: private empty_base_optimization<T>
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{
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typedef empty_base_optimization<T> Base;
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void* m_p;
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public:
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explicit test1 (T const& t)
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: Base (t)
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{}
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T& member() {return Base::member();}
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T const& member() const {return Base::member();}
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};
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template <class T>
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class test2
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{
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void* m_p;
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T m_t;
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public:
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explicit test2 (T const& t)
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: m_t (t)
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{}
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T& member() {return m_t;}
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T const& member() const {return m_t;}
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};
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struct Empty
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{
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operator bool() {return true;}
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};
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static
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bool
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test_one ()
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{
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test1<int> t1(1);
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test2<int> t2(2);
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static_assert(sizeof(t1) == sizeof(t2), "don't optimize for int");
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if (t1.member() != 1)
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return false;
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if (t2.member() != 2)
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return false;
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return true;
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}
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static
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bool
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test_two ()
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{
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test1<Empty> t1((Empty()));
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test2<Empty> t2((Empty()));
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static_assert(sizeof(t1) < sizeof(t2), "do optimize for Empty");
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if (t1.member() != true)
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return false;
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if (t2.member() != true)
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return false;
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return true;
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}
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void
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run ()
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{
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expect (test_one());
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expect (test_two());
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pass ();
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}
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};
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BEAST_DEFINE_TESTSUITE(empty_base_optimization,utility,beast);
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} // beast
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