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epicsTimerTest: assert timers not expiring early

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This commit is contained in:
Michael Davidsaver
2025-11-19 18:04:02 -08:00
parent 01360b2a69
commit 7ae3e4c2df
1 changed files with 10 additions and 3 deletions
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13
modules/libcom/test/epicsTimerTest.cpp
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@@ -26,6 +26,9 @@
#include "epicsUnitTest.h"
#include "testMain.h"
// for TIMER_QUANTUM_BIAS
#include <timer/timerPrivate.h>
#define verify(exp) ((exp) ? (void)0 : \
epicsAssert(__FILE__, __LINE__, #exp, epicsAssertAuthor))
@@ -110,12 +113,16 @@ inline double delayVerify::delay () const
double delayVerify::checkError () const
{
const double minError = testImpreciseTiming() ? 0.25 : 0.05;
#ifdef TIMER_QUANTUM_BIAS
const double lowerBound = -epicsThreadSleepQuantum()/2;
#else
const double lowerBound = 0.0;
#endif
double upperBound = testImpreciseTiming() ? 0.25 : 0.05;
double measuredDelay = this->expireStamp - this->beginStamp;
double measuredError = measuredDelay - this->expectedDelay;
double absoluteError = fabs(measuredError);
double percentError = 100.0 * measuredError / this->expectedDelay;
testOk(absoluteError < minError,
testOk(measuredError>=lowerBound && measuredError < upperBound,
"Delay %.3f s, error = %+.6f ms (%+.3f %%)",
this->expectedDelay, measuredError * 1000, percentError);
return measuredError;