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