172 lines
4.2 KiB
C++
172 lines
4.2 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: tests/events/stopwatch.cpp
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// Purpose: Test wxStopWatch class
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// Author: Francesco Montorsi (extracted from console sample)
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// Created: 2010-05-16
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// Copyright: (c) 2010 wxWidgets team
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///////////////////////////////////////////////////////////////////////////////
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#include "testprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#endif // WX_PRECOMP
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#include <time.h>
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#include "wx/stopwatch.h"
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#include "wx/utils.h"
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namespace
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{
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const long tolerance = 50; // in ms
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const int sleepTime = 500;
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} // anonymous namespace
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// --------------------------------------------------------------------------
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// test class
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// --------------------------------------------------------------------------
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class StopWatchTestCase : public CppUnit::TestCase
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{
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public:
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StopWatchTestCase() {}
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private:
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CPPUNIT_TEST_SUITE( StopWatchTestCase );
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CPPUNIT_TEST( Misc );
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CPPUNIT_TEST( BackwardsClockBug );
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CPPUNIT_TEST( RestartBug );
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CPPUNIT_TEST_SUITE_END();
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void Misc();
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void BackwardsClockBug();
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void RestartBug();
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DECLARE_NO_COPY_CLASS(StopWatchTestCase)
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};
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// register in the unnamed registry so that these tests are run by default
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CPPUNIT_TEST_SUITE_REGISTRATION( StopWatchTestCase );
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// also include in its own registry so that these tests can be run alone
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CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( StopWatchTestCase, "StopWatchTestCase" );
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void StopWatchTestCase::Misc()
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{
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// Buildbot machines are quite slow and sleep doesn't work reliably there,
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// i.e. it can sleep for much longer than requested. This is not really an
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// error, so just don't run this test there -- and if you get failures in
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// this test when running it interactively, this might also be normal if
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// the machine is under heavy load.
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if ( IsAutomaticTest() )
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return;
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wxStopWatch sw;
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long t;
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wxLongLong usec;
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sw.Pause(); // pause it immediately
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// verify that almost no time elapsed
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usec = sw.TimeInMicro();
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WX_ASSERT_MESSAGE
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(
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("Elapsed time was %" wxLongLongFmtSpec "dus", usec),
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usec < tolerance*1000
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);
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wxSleep(1);
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t = sw.Time();
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// check that the stop watch doesn't advance while paused
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WX_ASSERT_MESSAGE
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(
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("Actual time value is %ld", t),
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t >= 0 && t < tolerance
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);
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sw.Resume();
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wxMilliSleep(sleepTime);
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t = sw.Time();
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// check that it did advance now by ~1.5s
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WX_ASSERT_MESSAGE
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(
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("Actual time value is %ld", t),
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t > sleepTime - tolerance && t < 2*sleepTime
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);
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sw.Pause();
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// check that this sleep won't be taken into account below
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wxMilliSleep(sleepTime);
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sw.Resume();
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wxMilliSleep(sleepTime);
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t = sw.Time();
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// and it should advance again
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WX_ASSERT_MESSAGE
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(
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("Actual time value is %ld", t),
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t > 2*sleepTime - tolerance && t < 3*sleepTime
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);
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}
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void StopWatchTestCase::BackwardsClockBug()
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{
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wxStopWatch sw;
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wxStopWatch sw2;
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for ( size_t n = 0; n < 10; n++ )
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{
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sw2.Start();
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for ( size_t m = 0; m < 10000; m++ )
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{
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CPPUNIT_ASSERT ( sw.Time() >= 0 && sw2.Time() >= 0 );
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}
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}
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}
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void StopWatchTestCase::RestartBug()
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{
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wxStopWatch sw;
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sw.Pause();
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// Calling Start() should resume the stopwatch if it was paused.
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static const int offset = 5000;
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sw.Start(offset);
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wxMilliSleep(sleepTime);
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long t = sw.Time();
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WX_ASSERT_MESSAGE
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(
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("Actual time value is %ld", t),
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t >= offset + sleepTime - tolerance
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);
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// As above, this is not actually due to the fact of the test being
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// automatic but just because buildot machines are usually pretty slow, so
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// this test often fails there simply because of the high load on them.
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if ( !IsAutomaticTest() )
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{
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WX_ASSERT_MESSAGE
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(
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("Actual time value is %ld", t),
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t < offset + sleepTime + tolerance
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);
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}
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}
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