public function testGetJSON($url, $format)
{
$info = $this->download->getJSON($url, $format);
$this->assertObjectHasAttribute('webpage_url', $info);
$this->assertObjectHasAttribute('url', $info);
$this->assertObjectHasAttribute('ext', $info);
$this->assertObjectHasAttribute('title', $info);
$this->assertObjectHasAttribute('formats', $info);
$this->assertObjectHasAttribute('_filename', $info);
}