How do I easily parse a URL with parameters in a Rails test?

Question

I have a some code that embeds a return_to URL into a redirect (like OpenID) that I want to test:

def test_uses_referrer_for_return_to
  expecte         


        

Answer 1

You want Addressable for this.

uri = Addressable::URI.parse("http://example.com/?var=value")
uri.query_values # => {"var"=>"value"}
uri.query_values = {"one" => "1", "two" => "2"}
uri.to_s # => "http://example.com/?two=2&one=1"

It'll automatically handle all the escaping rules for you, and it has some other useful features, like not throwing exceptions for perfectly valid but obscure URIs like the built-in URI parser.