# Strange problem on "xhr" and "xml\_http\_request" **URL:** \ **Category:** Rails\ **Created:** [December 5, 2007, 9:25am UTC](https://www.ruby-forum.com/t/strange-problem-on-xhr-and-xml-http-request/122177 "2007-12-05T09:25:34Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![jan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/ce7236/32.png) [@jan](https://www.ruby-forum.com/u/jan)\ **Post date:** [December 5, 2007, 9:25am UTC](https://www.ruby-forum.com/t/strange-problem-on-xhr-and-xml-http-request/122177/1 "2007-12-05T09:25:34Z")
Hi, I’m learning the integration test framework of rails, it’s definitely great! But when I tried to use xml\_http\_request’s alias xhr, test broken … If I wrote xml\_http\_request :post, “/store/add\_to\_cart”, :id =\> ruby\_book.id everything’s ok, tests passed succesfully. After I change this line to xhr :post, “/store/add\_to\_cart”, :id =\> ruby\_book.id I get exceptions like this: Loaded suite test/integration/user\_stories\_test Started E Finished in 1.203 seconds. 1. Error: test\_buying\_a\_product(UserStoriesTest): ArgumentError: wrong number of arguments (4 for 3) /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/ action\_controller/integration.rb:508:in `post' /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/ action_controller/integration.rb:508:in`send’ /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/ action\_controller/integration.rb:508:in `post' /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/ action_controller/test_process.rb:391:in`send’ /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/ action\_controller/test\_process.rb:391:in `xhr' test/integration/user_stories_test.rb:22:in`test\_buying\_a\_product’ /usr/lib/ruby/gems/1.8/gems/actionpack-1.13.5/lib/ action\_controller/integration.rb:463:in `run’ 1 tests, 2 assertions, 0 failures, 1 errors I don’t know why, xhr is just an alias of xml\_http\_request in the source, isn’t? Thanks, Jan