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1 | /////////////////////////////////////////////////////////////////////////////// | |
2 | // Name: tests/events/stopwatch.cpp | |
3 | // Purpose: Test wxStopWatch class | |
4 | // Author: Francesco Montorsi (extracted from console sample) | |
5 | // Created: 2010-05-16 | |
6 | // RCS-ID: $Id$ | |
7 | // Copyright: (c) 2010 wxWidgets team | |
8 | /////////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | ||
11 | // ---------------------------------------------------------------------------- | |
12 | // headers | |
13 | // ---------------------------------------------------------------------------- | |
14 | ||
15 | #include "testprec.h" | |
16 | ||
17 | #ifdef __BORLANDC__ | |
18 | #pragma hdrstop | |
19 | #endif | |
20 | ||
21 | #ifndef WX_PRECOMP | |
22 | #endif // WX_PRECOMP | |
23 | ||
24 | #include <time.h> | |
25 | ||
26 | #include "wx/stopwatch.h" | |
27 | #include "wx/utils.h" | |
28 | ||
29 | namespace | |
30 | { | |
31 | ||
32 | const long tolerance = 50; // in ms | |
33 | const int sleepTime = 500; | |
34 | ||
35 | } // anonymous namespace | |
36 | ||
37 | // -------------------------------------------------------------------------- | |
38 | // test class | |
39 | // -------------------------------------------------------------------------- | |
40 | ||
41 | class StopWatchTestCase : public CppUnit::TestCase | |
42 | { | |
43 | public: | |
44 | StopWatchTestCase() {} | |
45 | ||
46 | private: | |
47 | CPPUNIT_TEST_SUITE( StopWatchTestCase ); | |
48 | CPPUNIT_TEST( Misc ); | |
49 | CPPUNIT_TEST( BackwardsClockBug ); | |
50 | CPPUNIT_TEST( RestartBug ); | |
51 | CPPUNIT_TEST_SUITE_END(); | |
52 | ||
53 | void Misc(); | |
54 | void BackwardsClockBug(); | |
55 | void RestartBug(); | |
56 | ||
57 | DECLARE_NO_COPY_CLASS(StopWatchTestCase) | |
58 | }; | |
59 | ||
60 | // register in the unnamed registry so that these tests are run by default | |
61 | CPPUNIT_TEST_SUITE_REGISTRATION( StopWatchTestCase ); | |
62 | ||
63 | // also include in its own registry so that these tests can be run alone | |
64 | CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( StopWatchTestCase, "StopWatchTestCase" ); | |
65 | ||
66 | void StopWatchTestCase::Misc() | |
67 | { | |
68 | wxStopWatch sw; | |
69 | long t; | |
70 | wxLongLong usec; | |
71 | ||
72 | sw.Pause(); // pause it immediately | |
73 | ||
74 | // verify that almost no time elapsed | |
75 | usec = sw.TimeInMicro(); | |
76 | WX_ASSERT_MESSAGE | |
77 | ( | |
78 | ("Elapsed time was %" wxLongLongFmtSpec "dus", usec), | |
79 | usec < tolerance*1000 | |
80 | ); | |
81 | ||
82 | wxSleep(1); | |
83 | t = sw.Time(); | |
84 | ||
85 | // check that the stop watch doesn't advance while paused | |
86 | WX_ASSERT_MESSAGE | |
87 | ( | |
88 | ("Actual time value is %ld", t), | |
89 | t >= 0 && t < tolerance | |
90 | ); | |
91 | ||
92 | sw.Resume(); | |
93 | wxMilliSleep(sleepTime); | |
94 | t = sw.Time(); | |
95 | // check that it did advance now by ~1.5s | |
96 | WX_ASSERT_MESSAGE | |
97 | ( | |
98 | ("Actual time value is %ld", t), | |
99 | t > sleepTime - tolerance && t < sleepTime + tolerance | |
100 | ); | |
101 | ||
102 | sw.Pause(); | |
103 | ||
104 | // check that this sleep won't be taken into account below | |
105 | wxMilliSleep(sleepTime); | |
106 | sw.Resume(); | |
107 | ||
108 | wxMilliSleep(sleepTime); | |
109 | t = sw.Time(); | |
110 | ||
111 | // and it should advance again | |
112 | WX_ASSERT_MESSAGE | |
113 | ( | |
114 | ("Actual time value is %ld", t), | |
115 | t > 2*sleepTime - tolerance && t < 2*sleepTime + tolerance | |
116 | ); | |
117 | } | |
118 | ||
119 | void StopWatchTestCase::BackwardsClockBug() | |
120 | { | |
121 | wxStopWatch sw; | |
122 | wxStopWatch sw2; | |
123 | ||
124 | for ( size_t n = 0; n < 10; n++ ) | |
125 | { | |
126 | sw2.Start(); | |
127 | ||
128 | for ( size_t m = 0; m < 10000; m++ ) | |
129 | { | |
130 | CPPUNIT_ASSERT ( sw.Time() >= 0 && sw2.Time() >= 0 ); | |
131 | } | |
132 | } | |
133 | } | |
134 | ||
135 | void StopWatchTestCase::RestartBug() | |
136 | { | |
137 | wxStopWatch sw; | |
138 | sw.Pause(); | |
139 | ||
140 | // Calling Start() should resume the stopwatch if it was paused. | |
141 | static const int offset = 5000; | |
142 | sw.Start(offset); | |
143 | wxMilliSleep(sleepTime); | |
144 | ||
145 | long t = sw.Time(); | |
146 | WX_ASSERT_MESSAGE | |
147 | ( | |
148 | ("Actual time value is %ld", t), | |
149 | t > offset + sleepTime - tolerance && | |
150 | t < offset + sleepTime + tolerance | |
151 | ); | |
152 | } |