PHPUnit_Util_PHP::runJob PHP Method

    public function runJob($job, PHPUnit_Framework_Test $test = NULL, PHPUnit_Framework_TestResult $result = NULL)
    {
        $process = proc_open(self::getPhpBinary(), array(0 => array('pipe', 'r'), 1 => array('pipe', 'w'), 2 => array('pipe', 'w')), $pipes);
        if (!is_resource($process)) {
            throw new PHPUnit_Framework_Exception('Unable to create process for process isolation.');
        }
        if ($result !== NULL) {
            $result->startTest($test);
        }
        $this->process($pipes[0], $job);
        fclose($pipes[0]);
        $stdout = stream_get_contents($pipes[1]);
        fclose($pipes[1]);
        $stderr = stream_get_contents($pipes[2]);
        fclose($pipes[2]);
        proc_close($process);
        $this->cleanup();
        if ($result !== NULL) {
            $this->processChildResult($test, $result, $stdout, $stderr);
        } else {
            return array('stdout' => $stdout, 'stderr' => $stderr);
        }
    }

 /**
  * Runs a test and collects its result in a TestResult instance.
  *
  * @param  PHPUnit_Framework_TestResult $result
  * @return PHPUnit_Framework_TestResult
  */
 public function run(PHPUnit_Framework_TestResult $result = null)
 {
     $sections = $this->parse();
     $code = $this->render($sections['FILE']);
     if ($result === null) {
         $result = new PHPUnit_Framework_TestResult();
     }
     $skip = false;
     $time = 0;
     $settings = $this->settings;
     $result->startTest($this);
     if (isset($sections['INI'])) {
         $settings = array_merge($settings, $this->parseIniSection($sections['INI']));
     }
     // Redirects STDERR to STDOUT
     $this->phpUtil->setUseStderrRedirection(true);
     if (isset($sections['SKIPIF'])) {
         $jobResult = $this->phpUtil->runJob($sections['SKIPIF'], $settings);
         if (!strncasecmp('skip', ltrim($jobResult['stdout']), 4)) {
             if (preg_match('/^\\s*skip\\s*(.+)\\s*/i', $jobResult['stdout'], $message)) {
                 $message = substr($message[1], 2);
             } else {
                 $message = '';
             }
             $result->addFailure($this, new PHPUnit_Framework_SkippedTestError($message), 0);
             $skip = true;
         }
     }
     if (!$skip) {
         PHP_Timer::start();
         $jobResult = $this->phpUtil->runJob($code, $settings);
         $time = PHP_Timer::stop();
         try {
             $this->assertPhptExpectation($sections, $jobResult['stdout']);
         } catch (PHPUnit_Framework_AssertionFailedError $e) {
             $result->addFailure($this, $e, $time);
         } catch (Throwable $t) {
             $result->addError($this, $t, $time);
         } catch (Exception $e) {
             $result->addError($this, $e, $time);
         }
         if (isset($sections['CLEAN'])) {
             $cleanCode = $this->render($sections['CLEAN']);
             $this->phpUtil->runJob($cleanCode, $this->settings);
         }
     }
     $result->endTest($this, $time);
     return $result;
 }