public function it_should_returns_image_url_when_calling_show()
{
// given
$filename = 'filename';
$this->config->shouldReceive('get')->with('cloudder.scaling')->once()->andReturn(array());
$this->cloudinary->shouldReceive('cloudinary_url')->once()->with($filename, array());
// when
$this->cloudinary_wrapper->show($filename);
}