From: Phlip <phlipcpp@...>
Date: 2007-09-16T11:30:07+09:00
Subject: Re: where is wrong with contoller test?

OnRails Ruby wrote:

> I got a strange question when I did a controller test as below

The best place for Rails question is the Google Group called "Ruby on Rails: 
Talk". And you had better get at least the book /Agile Web Development on 
Rails/ before programming any more.

> On controller.rb:
>
> def send_welcome_message(person)
>  some codes;
> end
> there 'person' is instance variables.

It is not; it's a method parameter.

However, actions don't (typically) take arguments. They always get data from 
their web pages from the params hash, so you need to use

  person = params[:person]

> ArgumentError: wrong number of arguments (0 for 1)

Right; the test rig did not pass person where you think it did, but the 
action was expecting it there. Take it out of the action's arguments.

BTW congrats for testing; it will make all this stuff easier as you go!

-- 
  Phlip
  http://www.oreilly.com/catalog/9780596510657/
  "Test Driven Ajax (on Rails)"
  assert_xpath, assert_javascript, & assert_ajax