From: dblack@...
Date: 2006-09-22T19:57:02+09:00
Subject: Re: Continue code run after assert exception

Hi --

On Fri, 22 Sep 2006, aidy wrote:

> I am iterating through a collection and using Test::Unit assertations
> on each object
>
>   begin
>     search.each {|@x|
>     assert($ie.contains_text(@x))  }
>   rescue => e
>     puts "#{@x} does not exist in HTML"
>   end
>
> However, the problem is that if the first assertation is false, an
> exception is thrown and my loop terminates. I would like to continue
> the loop after an exception is thrown. I have tried 'retry', but I find
> myself in an infinite loop.

You can put the begin/rescue/end inside your loop, like this:

[1,2,3].each do |x|
   begin
     raise unless x == 2
   rescue
     puts "No! #{x}"
   end
end

Also, you might find the asserts_raises method useful.  It lets you
predict that something will raise an exception.  It probably wouldn't
be a good fit with the loop structure you're using, but you could
isolate some exception-raising tests and test them that way.


David

-- 
                   David A. Black | dblack@wobblini.net
Author of "Ruby for Rails"   [1] | Ruby/Rails training & consultancy [3]
DABlog (DAB's Weblog)        [2] | Co-director, Ruby Central, Inc.   [4]
[1] http://www.manning.com/black | [3] http://www.rubypowerandlight.com
[2] http://dablog.rubypal.com    | [4] http://www.rubycentral.org