From: Paolo Negri <hungrylist@...>
Date: 2007-11-02T01:24:04+09:00
Subject: Re: use of case statement doesn't work as I expect :( help appreciated!

I think you problem is in your code the case is testing if

result.is_a? Net::HTTPOK

and not

result == Net::HTTPOK

This happens since Net::HTTPOK is a class and not an object

If you rewrite your code this way you should see the behaviour you're expecting.

result = TestWebsite::test( site )

case result.to_s
  when 'Net::HTTPOK'
    severity = :INFO
  when 'SocketError'
    severity = :ERROR
  else
    severity = :WARN
end

A better idea would be to have TestWebsite::test( site ) returning the
object and not the class, this way you don't need to rewrite your
original case code

Paolo

On 01/11/2007, Gabriel Dragffy <gabe@dragffy.com> wrote:
> Hi all,
>
> I have an object ( a website tester) that can return various values.
> One of which is Net:HTTPOK, I want to use a case statement to evaluate
> this and set a variable called 'severity', as follows:
>
> result = TestWebsite::test( site )
> case result
> when Net::HTTPOK
>   severity = :INFO
> when SocketError
>   severity = :ERROR
> else
>   severity = :WARN
> end
>
> However, when Net::HTTPOK is returned, the severity variable ALWAYS
> ends up as :WARN instead of :INFO.
>
> Using IRB I have manually entered the code in as follows:
>  >> site = 'beautyandthebrand.co.uk'
> => "beautyandthebrand.co.uk"
>  >> result = TestWebsite::test( site )
> => Net::HTTPOK
>
> Then ran the following tests:
>  >> result == Net::HTTPOK
> => true
>  >> result != Net::HTTPOK
> => false
>
> This to me just proves the result I am getting is Net::HTTPOK, but why
> can't I get it to match in the case statement?
>
> Many thanks for any help
>
> Gabriel
>
>