function testEncryptAll()
{
$filename = "/encryptAll" . uniqid() . ".txt";
$util = new Encryption\Util($this->view, $this->userId);
// disable encryption to upload a unencrypted file
\OC_App::disable('files_encryption');
$this->view->file_put_contents($this->userId . '/files/' . $filename, $this->dataShort);
$fileInfoUnencrypted = $this->view->getFileInfo($this->userId . '/files/' . $filename);
$this->assertTrue(is_array($fileInfoUnencrypted));
// enable file encryption again
\OC_App::enable('files_encryption');
// encrypt all unencrypted files
$util->encryptAll('/' . $this->userId . '/' . 'files');
$fileInfoEncrypted = $this->view->getFileInfo($this->userId . '/files/' . $filename);
$this->assertTrue(is_array($fileInfoEncrypted));
// check if mtime and etags unchanged
$this->assertEquals($fileInfoEncrypted['mtime'], $fileInfoUnencrypted['mtime']);
$this->assertEquals($fileInfoEncrypted['etag'], $fileInfoUnencrypted['etag']);
$this->view->unlink($this->userId . '/files/' . $filename);
}