Bugfix: coding standard & missing assertion

lib/Doctrine/DBAL/Connection.php

@@ -1497,9 +1497,10 @@ class Connection implements DriverConnection
      */
     public function ping()
     {
-        if (!($this->_conn instanceof PingableConnection)) {
+        if ( ! ($this->_conn instanceof PingableConnection)) {
             throw ConnectionException::unsupportedFeature('ping');
         }
+
         return $this->_conn->ping();
     }
 }

tests/Doctrine/Tests/DBAL/Functional/Mysqli/ConnectionTest.php

@@ -42,7 +42,7 @@ class ConnectionTest extends \Doctrine\Tests\DbalFunctionalTestCase
     public function testPing()
     {
         $conn = $this->getConnection(array());
-        $conn->ping();
+        $this->assertTrue($conn->ping());
     }
 
     private function getConnection(array $driverOptions)