Cloudinary::config_get PHP Method

    public static function config_get($option, $default = NULL)
    {
        return Cloudinary::option_get(self::config(), $option, $default);
    }

 public function test_upload()
 {
     $result = Cloudinary\Uploader::upload("tests/logo.png");
     $this->assertEquals($result["width"], 241);
     $this->assertEquals($result["height"], 51);
     $expected_signature = Cloudinary::api_sign_request(array("public_id" => $result["public_id"], "version" => $result["version"]), Cloudinary::config_get("api_secret"));
     $this->assertEquals($result["signature"], $expected_signature);
 }