[files] fix mock creation and remove hardcoded 'require' statement

apps/files/ajax/rename.php

@@ -21,8 +21,6 @@
  *
  */
 
-require_once realpath( dirname(__FILE__).'/../lib/app.php' );
-
 OCP\JSON::checkLoggedIn();
 OCP\JSON::callCheck();
 

apps/files/tests/ajax_rename.php

@@ -21,18 +21,15 @@
  *
  */
 
-
-require_once dirname(__FILE__).'/../lib/app.php';
-
 class Test_OC_Files_App_Rename extends \PHPUnit_Framework_TestCase {
 
 	function setUp() {
 		// mock OC_L10n
-		$l10nMock = $this->getMock('\OC_L10N', array('t'));
+		$l10nMock = $this->getMock('\OC_L10N', array('t'), array(), '', false);
 		$l10nMock->expects($this->any())
 			->method('t')
 			->will($this->returnArgument(0));
-		$viewMock = $this->getMock('\OC\Files\View', array('rename', 'normalizePath'));
+		$viewMock = $this->getMock('\OC\Files\View', array('rename', 'normalizePath'), array(), '', false);
 		$viewMock->expects($this->any())
 			->method('normalizePath')
 			->will($this->returnArgument(0));