/**
* Page through the results while validating no memory leaks exists
*
* @param $start Starting memory value
* @return int Number of rows visited
*/
private function validatePageResults($rows)
{
// Get the starting memory usage
$start = memory_get_usage() / 1024;
if (Integration::isDebug() && Integration::isVerbose()) {
fprintf(STDOUT, "Start Usage: %dkb" . PHP_EOL, $start);
}
// Page over each result set and count the number of rows visited
$count = $rows->count();
while ($rows = $rows->nextPage()) {
if ($rows->count() != 0) {
$count += $rows->count();
if (Integration::isDebug() && Integration::isVerbose()) {
fprintf(STDOUT, "Page %d: Current memory usage is %dkb" . PHP_EOL, $count / 2, memory_get_usage() / 1024 - $start);
}
}
}
// Get the final memory usage (and apply a tolerance to compensate for GC)
$end = memory_get_usage() / 1024;
if (Integration::isDebug() && Integration::isVerbose()) {
fprintf(STDOUT, "End Usage: %dkb [%dkb]" . PHP_EOL, $end, $end - $start);
}
$difference = $end - $start - 20;
// 20KB tolerance
$this->assertLessThanOrEqual(0, $difference);
// Return the number of rows visited
return $count;
}
