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
144 lines
4 KiB
C++
144 lines
4 KiB
C++
/*
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ThreadWrapperJoin(Test) - wait blocking on termination of a thread
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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 thread-wrapper-join-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/test/test-helper.hpp"
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#include "lib/symbol.hpp"
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#include "backend/thread-wrapper.hpp"
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#include "lib/error.hpp"
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#include "lib/sync.hpp"
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#include <functional>
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using std::bind;
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using test::Test;
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namespace backend {
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namespace test {
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using lumiera::error::LUMIERA_ERROR_LOGIC;
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namespace {
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const int DESTRUCTION_CODE = 23;
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LUMIERA_ERROR_DEFINE(SPECIAL, "grandiose exception");
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}
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/***********************************************************************//**
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* @test use the Lumiera backend to create some new threads, additionally
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* synchronising with these child threads and waiting for termination.
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*
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* @see backend::Thread
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* @see threads.h
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*/
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class ThreadWrapperJoin_test : public Test
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{
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virtual void
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run (Arg)
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{
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simpleUse ();
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wrongUse ();
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getError ();
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}
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volatile int aValue_; ///< state to be modified by the other thread
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void
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theAction (int secretValue) ///< to be run in a new thread...
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{
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usleep (100000); // pause 100ms prior to modifying
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if (DESTRUCTION_CODE == secretValue)
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LUMIERA_ERROR_SET(test, SPECIAL, 0);
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else
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aValue_ = secretValue+42;
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}
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void
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simpleUse ()
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{
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aValue_=0;
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int mySecret = (rand() % 1000) - 500;
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ThreadJoinable newThread("test Thread joining-1"
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, bind (&ThreadWrapperJoin_test::theAction, this, mySecret)
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);
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newThread.join(); // blocks until theAction() is done
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CHECK (aValue_ == mySecret+42);
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}
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void
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wrongUse ()
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{
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ThreadJoinable newThread("test Thread joining-2"
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, bind (&ThreadWrapperJoin_test::theAction, this, 1234)
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);
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newThread.join(); // blocks until theAction() is done
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VERIFY_ERROR(LOGIC, newThread.join() );
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VERIFY_ERROR(LOGIC, newThread.join() );
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}
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void
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getError()
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{
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ThreadJoinable thread1("test Thread joining-3"
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, bind (&ThreadWrapperJoin_test::theAction, this, DESTRUCTION_CODE)
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);
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VERIFY_ERROR(SPECIAL, thread1.join().maybeThrow() );
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ThreadJoinable thread2("test Thread joining-4"
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, bind (&ThreadWrapperJoin_test::theAction, this, DESTRUCTION_CODE)
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);
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CHECK (!thread2.join().isValid() ); // can check success without throwing
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}
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};
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/** Register this test class... */
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LAUNCHER (ThreadWrapperJoin_test, "function common");
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}} // namespace backend::test
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