OpenWalnut  1.2.5
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WConditionOneShot_test.h
00001 //---------------------------------------------------------------------------
00002 //
00003 // Project: OpenWalnut ( http://www.openwalnut.org )
00004 //
00005 // Copyright 2009 OpenWalnut Community, BSV@Uni-Leipzig and CNCF@MPI-CBS
00006 // For more information see http://www.openwalnut.org/copying
00007 //
00008 // This file is part of OpenWalnut.
00009 //
00010 // OpenWalnut is free software: you can redistribute it and/or modify
00011 // it under the terms of the GNU Lesser General Public License as published by
00012 // the Free Software Foundation, either version 3 of the License, or
00013 // (at your option) any later version.
00014 //
00015 // OpenWalnut is distributed in the hope that it will be useful,
00016 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00018 // GNU Lesser General Public License for more details.
00019 //
00020 // You should have received a copy of the GNU Lesser General Public License
00021 // along with OpenWalnut. If not, see <http://www.gnu.org/licenses/>.
00022 //
00023 //---------------------------------------------------------------------------
00024 
00025 #ifndef WCONDITIONONESHOT_TEST_H
00026 #define WCONDITIONONESHOT_TEST_H
00027 
00028 #include <iostream>
00029 
00030 #include <boost/thread.hpp>
00031 #include <cxxtest/TestSuite.h>
00032 
00033 #include "../WConditionOneShot.h"
00034 
00035 /**
00036  * Helper class.
00037  */
00038 class Callable
00039 {
00040 public:
00041 
00042     /**
00043      * Flag set true when the thread starts.
00044      */
00045     bool flag;
00046 
00047     /**
00048      * The condition to use.
00049      */
00050     WConditionOneShot* c;
00051 
00052     /**
00053      * The thread.
00054      */
00055     void threadMain()
00056     {
00057         flag = true;
00058 
00059         // let the test's thread reach its "wait" call first
00060         boost::this_thread::sleep( boost::posix_time::seconds( 1 ) );
00061         c->notify();
00062     };
00063 };
00064 
00065 /**
00066  * Test WConditionOneShot
00067  */
00068 class WConditionOneShotTest : public CxxTest::TestSuite
00069 {
00070 public:
00071 
00072     /**
00073      * An instantiation should never throw an exception, as well as tear down.
00074      */
00075     void testInstantiation( void )
00076     {
00077         WConditionOneShot* c = 0;
00078 
00079         TS_ASSERT_THROWS_NOTHING( c = new WConditionOneShot() );
00080         TS_ASSERT_THROWS_NOTHING( delete c );
00081     }
00082 
00083     /**
00084      * Test whether notification is working.
00085      */
00086     void testWaitNotify()
00087     {
00088         WConditionOneShot c;
00089         Callable t;
00090         t.flag = false;
00091         t.c = &c;
00092 
00093         // start a thread
00094         boost::thread thread = boost::thread( boost::bind( &Callable::threadMain, &t ) );
00095 
00096         // wait for condition
00097         c.wait();
00098 
00099         // since it is a one shot condition -> another wait will not cause a freeze
00100         c.wait();
00101 
00102         TS_ASSERT( t.flag );
00103 
00104         // notifying twice should not cause exceptions (boost::lock_error)
00105         TS_ASSERT_THROWS_NOTHING( c.notify() );
00106     }
00107 };
00108 
00109 #endif  // WCONDITIONONESHOT_TEST_H
00110 
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