models/classes/runner/time/QtiTimer.php
protected function checkTimestampCoherence($points, $timestamp)
    {
        foreach($points as $point) {
            if ($point->getTimestamp() > $timestamp) {
                throw new InconsistentRangeException('A new TimePoint cannot be set before an existing one!');
            }
        }
    }
protected function checkTimestampCoherence($points, $timestamp)
    {
        foreach($points as $point) {
            if ($point->getTimestamp() > $timestamp) {
                throw new InconsistentRangeException('A new TimePoint cannot be set before an existing one!');
            }
        }
    }
Checks if a timestamp is consistent with existing TimePoint within a range
@param array $points
@param float $timestamp
@throws InconsistentRangeException