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WConditionOneShot_test.h
1 //---------------------------------------------------------------------------
2 //
3 // Project: OpenWalnut ( http://www.openwalnut.org )
4 //
5 // Copyright 2009 OpenWalnut Community, BSV@Uni-Leipzig and CNCF@MPI-CBS
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8 // This file is part of OpenWalnut.
9 //
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11 // it under the terms of the GNU Lesser General Public License as published by
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23 //---------------------------------------------------------------------------
24 
25 #ifndef WCONDITIONONESHOT_TEST_H
26 #define WCONDITIONONESHOT_TEST_H
27 
28 #include <iostream>
29 
30 #include <boost/thread.hpp>
31 #include <cxxtest/TestSuite.h>
32 
33 #include "../WConditionOneShot.h"
34 
35 /**
36  * Helper class.
37  */
38 class Callable
39 {
40 public:
41 
42  /**
43  * Flag set true when the thread starts.
44  */
45  bool flag;
46 
47  /**
48  * The condition to use.
49  */
51 
52  /**
53  * The thread.
54  */
55  void threadMain()
56  {
57  flag = true;
58 
59  // let the test's thread reach its "wait" call first
60  boost::this_thread::sleep( boost::posix_time::seconds( 1 ) );
61  c->notify();
62  };
63 };
64 
65 /**
66  * Test WConditionOneShot
67  */
68 class WConditionOneShotTest : public CxxTest::TestSuite
69 {
70 public:
71 
72  /**
73  * An instantiation should never throw an exception, as well as tear down.
74  */
75  void testInstantiation( void )
76  {
77  WConditionOneShot* c = 0;
78 
79  TS_ASSERT_THROWS_NOTHING( c = new WConditionOneShot() );
80  TS_ASSERT_THROWS_NOTHING( delete c );
81  }
82 
83  /**
84  * Test whether notification is working.
85  */
87  {
89  Callable t;
90  t.flag = false;
91  t.c = &c;
92 
93  // start a thread
94  boost::thread thread = boost::thread( boost::bind( &Callable::threadMain, &t ) );
95 
96  // wait for condition
97  c.wait();
98 
99  // since it is a one shot condition -> another wait will not cause a freeze
100  c.wait();
101 
102  TS_ASSERT( t.flag );
103 
104  // notifying twice should not cause exceptions (boost::lock_error)
105  TS_ASSERT_THROWS_NOTHING( c.notify() );
106  }
107 };
108 
109 #endif // WCONDITIONONESHOT_TEST_H
110