protected function _rename()
{
self::$vfs->rename('test/dir4', 'file1', 'test/dir4', 'file2');
$this->assertFalse(self::$vfs->exists('test/dir4', 'file1'));
$this->assertTrue(self::$vfs->exists('test/dir4', 'file2'));
self::$vfs->rename('test/dir4', 'file2', 'test/dir3', 'file3');
$this->assertFalse(self::$vfs->exists('test/dir4', 'file2'));
$this->assertTrue(self::$vfs->exists('test/dir3', 'file3'));
}