public function test_expire_at()
{
Curl::mockUpload($this);
Uploader::create_zip(array("tags" => $this->tag, "expire_at" => date('Y-m-d H:i:s', time() + 3600)));
assertUrl($this, '/image/generate_archive');
assertParam($this, "target_format", "zip");
assertParam($this, "tags[0]", $this->tag);
assertParam($this, "expire_at", NULL, "should support the 'expire_at' parameter");
}