/**
* @depends testGenerateIv
*/
function testConcatIv($iv)
{
$catFile = Encryption\Crypt::concatIv($this->dataLong, $iv);
// Fetch encryption metadata from end of file
$meta = substr($catFile, -22);
$identifier = substr($meta, 0, 6);
// Fetch IV from end of file
$foundIv = substr($meta, 6);
$this->assertEquals('00iv00', $identifier);
$this->assertEquals($iv, $foundIv);
// Remove IV and IV identifier text to expose encrypted content
$data = substr($catFile, 0, -22);
$this->assertEquals($this->dataLong, $data);
return array('iv' => $iv, 'catfile' => $catFile);
}
