Bolt\Logger\Manager::clear PHP Method

    public function clear($log)
    {
        if ($log === 'change') {
            $this->changeRepository->clearLog();
        } elseif ($log === 'system') {
            $this->systemRepository->clearLog();
        } else {
            throw new \UnexpectedValueException("Invalid log type requested: {$log}");
        }
        $this->app['logger.system']->info(ucfirst($log) . ' log cleared.', ['event' => 'security']);
    }

 public function testClear()
 {
     $app = $this->getApp();
     $mocker = new DoctrineMockBuilder();
     $db = $mocker->getConnectionMock();
     $db->expects($this->at(1))->method('executeQuery')->with($this->equalTo("TRUNCATE bolt_log_system"));
     $db->expects($this->at(2))->method('executeQuery')->with($this->equalTo("TRUNCATE bolt_log_change"));
     $app['db'] = $db;
     $log = new Manager($app);
     $log->clear('system');
     $log->clear('change');
     $this->setExpectedException('Exception', 'Invalid log type requested: invalid');
     $log->clear('invalid');
 }