public function merge(score $score)
{
$this->passNumber += $score->getPassNumber();
$this->failAssertions = array_merge($this->failAssertions, $score->failAssertions);
$this->exceptions = array_merge($this->exceptions, $score->exceptions);
$this->runtimeExceptions = array_merge($this->runtimeExceptions, $score->runtimeExceptions);
$this->errors = array_merge($this->errors, $score->errors);
$this->outputs = array_merge($this->outputs, $score->outputs);
$this->durations = array_merge($this->durations, $score->durations);
$this->memoryUsages = array_merge($this->memoryUsages, $score->memoryUsages);
$this->voidMethods = array_merge($this->voidMethods, $score->voidMethods);
$this->uncompletedMethods = array_merge($this->uncompletedMethods, $score->uncompletedMethods);
$this->skippedMethods = array_merge($this->skippedMethods, $score->skippedMethods);
$this->coverage->merge($score->coverage);
return $this;
}