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1 | /////////////////////////////////////////////////////////////////////////////// |
2 | // Name: tests/events/timertest.cpp | |
3 | // Purpose: Test wxTimer events | |
4 | // Author: Vadim Zeitlin | |
5 | // Created: 2008-10-22 | |
6 | // RCS-ID: $Id$ | |
7 | // Copyright: (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org> | |
8 | /////////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | // ---------------------------------------------------------------------------- | |
11 | // headers | |
12 | // ---------------------------------------------------------------------------- | |
13 | ||
14 | #include "testprec.h" | |
15 | ||
16 | #ifdef __BORLANDC__ | |
17 | #pragma hdrstop | |
18 | #endif | |
19 | ||
20 | #ifndef WX_PRECOMP | |
21 | #endif // WX_PRECOMP | |
22 | ||
23 | #include <time.h> | |
24 | ||
25 | #include "wx/evtloop.h" | |
26 | #include "wx/timer.h" | |
27 | ||
28 | // helper class counting the number of timer events | |
29 | class TimerCounterHandler : public wxEvtHandler | |
30 | { | |
31 | public: | |
32 | TimerCounterHandler() | |
33 | { | |
34 | m_events = 0; | |
35 | ||
36 | Connect(wxEVT_TIMER, wxTimerEventHandler(TimerCounterHandler::OnTimer)); | |
37 | } | |
38 | ||
39 | int GetNumEvents() const { return m_events; } | |
40 | ||
41 | private: | |
42 | void OnTimer(wxTimerEvent& WXUNUSED(event)) | |
43 | { | |
44 | m_events++; | |
45 | ||
46 | Tick(); | |
47 | } | |
48 | ||
49 | virtual void Tick() { /* nothing to do in the base class */ } | |
50 | ||
51 | int m_events; | |
52 | ||
53 | DECLARE_NO_COPY_CLASS(TimerCounterHandler) | |
54 | }; | |
55 | ||
56 | // -------------------------------------------------------------------------- | |
57 | // test class | |
58 | // -------------------------------------------------------------------------- | |
59 | ||
60 | class TimerEventTestCase : public CppUnit::TestCase | |
61 | { | |
62 | public: | |
63 | TimerEventTestCase() {} | |
64 | ||
65 | private: | |
66 | CPPUNIT_TEST_SUITE( TimerEventTestCase ); | |
67 | CPPUNIT_TEST( OneShot ); | |
68 | CPPUNIT_TEST( Multiple ); | |
69 | CPPUNIT_TEST_SUITE_END(); | |
70 | ||
71 | void OneShot(); | |
72 | void Multiple(); | |
73 | ||
74 | DECLARE_NO_COPY_CLASS(TimerEventTestCase) | |
75 | }; | |
76 | ||
77 | // register in the unnamed registry so that these tests are run by default | |
78 | CPPUNIT_TEST_SUITE_REGISTRATION( TimerEventTestCase ); | |
79 | ||
80 | // also include in it's own registry so that these tests can be run alone | |
81 | CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( TimerEventTestCase, "TimerEventTestCase" ); | |
82 | ||
83 | void TimerEventTestCase::OneShot() | |
84 | { | |
85 | class ExitOnTimerHandler : public TimerCounterHandler | |
86 | { | |
87 | public: | |
88 | ExitOnTimerHandler(wxEventLoopBase& loop) | |
89 | : TimerCounterHandler(), | |
90 | m_loop(loop) | |
91 | { | |
92 | } | |
93 | ||
94 | private: | |
95 | virtual void Tick() { m_loop.Exit(); } | |
96 | ||
97 | wxEventLoopBase& m_loop; | |
98 | ||
99 | // don't use DECLARE_NO_COPY_CLASS() to avoid upsetting MSVC | |
100 | }; | |
101 | ||
102 | wxEventLoop loop; | |
103 | ||
104 | ExitOnTimerHandler handler(loop); | |
105 | wxTimer timer(&handler); | |
106 | timer.Start(200, true); | |
107 | ||
108 | loop.Run(); | |
109 | ||
110 | CPPUNIT_ASSERT_EQUAL( 1, handler.GetNumEvents() ); | |
111 | } | |
112 | ||
113 | void TimerEventTestCase::Multiple() | |
114 | { | |
115 | wxEventLoop loop; | |
116 | ||
117 | TimerCounterHandler handler; | |
118 | wxTimer timer(&handler); | |
119 | timer.Start(100); | |
120 | ||
121 | // run the loop for 2 seconds | |
122 | time_t t; | |
123 | time(&t); | |
124 | const time_t tEnd = t + 2; | |
125 | while ( time(&t) < tEnd ) | |
126 | { | |
127 | loop.Dispatch(); | |
128 | } | |
129 | ||
130 | // we can't count on getting exactly 20 ticks but we shouldn't get more | |
131 | // than this | |
132 | const int numTicks = handler.GetNumEvents(); | |
133 | CPPUNIT_ASSERT( numTicks <= 20 ); | |
134 | ||
135 | // and we should get a decent number of them (unless the system is horribly | |
136 | // loaded so if it does happen that this test fails we may need to remove | |
137 | // it) | |
138 | CPPUNIT_ASSERT( numTicks > 10 ); | |
139 | } |