rspec users - Jan 2009 - [Cucumber] Struggling with "multiple step definitions"

Hey gang,

I find myself struggling with multiple step definitions in cucumber  
all the time. I regularly test the contents of my flash[:notice] in  
steps, since I think that''s part of the behaviour of the app. So,  
while implementing a new feature, I ran into the following error:

/opt/local/lib/ruby/gems/1.8/gems/cucumber-0.1.15/bin/../lib/cucumber/ 
step_mother.rb:81:in `regexp_args_proc'': Multiple step definitions  
match "zou ik een melding moeten zien dat de reactie gemarkeerd is als  
spam": (Cucumber::Multiple)

features/steps/comments.rb:93:in `/^zou ik een melding moeten zien dat  
de reactie gemarkeerd is als spam$/''
features/steps/common.rb:9:in `/^zou ik een melding moeten zien dat de| 
het (.*?) is opgeslagen$/''

Even those who aren''t fluent in Dutch (since that''s what the
steps are
written in), it''s clearly not the same step... I am no regex wizard,  
so I might do something horribly wrong with my steps, but I do like to  
know how I can fix this.

Any ideas?
thanks,
bartz

Bart Zonneveld wrote:
> Hey gang,
> 
> Multiple step definitions
That''s because you have defined more than once a step, so instead of 
defining the same step for each feature, group step definitions by 
resource / domain concept / model / whatever-you-call-it for instance. 
here is a good documentation:

http://wiki.github.com/aslakhellesoy/cucumber/step-organisation


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On Sat, Jan 17, 2009 at 10:48 PM, Bart Zonneveld <zuperinfinite at
gmail.com>wrote:
> Hey gang,
>
> I find myself struggling with multiple step definitions in cucumber all the
> time. I regularly test the contents of my flash[:notice] in steps, since I
> think that''s part of the behaviour of the app. So, while
implementing a new
> feature, I ran into the following error:
>
>
/opt/local/lib/ruby/gems/1.8/gems/cucumber-0.1.15/bin/../lib/cucumber/step_mother.rb:81:in
> `regexp_args_proc'': Multiple step definitions match "zou ik
een melding
> moeten zien dat de reactie gemarkeerd is als spam":
(Cucumber::Multiple)
>
> features/steps/comments.rb:93:in `/^zou ik een melding moeten zien dat de
> reactie gemarkeerd is als spam$/''
> features/steps/common.rb:9:in `/^zou ik een melding moeten zien dat de|het
> (.*?) is opgeslagen$/''
>
> Even those who aren''t fluent in Dutch (since that''s what
the steps are
> written in), it''s clearly not the same step... I am no regex
wizard, so I
> might do something horribly wrong with my steps, but I do like to know how
I
> can fix this.
>
Step 1) Use rubular.com. It rocks. For this example you''ll see that
your
string matches both regexen (and where in the regexen they match)

Step 2) Avoid | in Step definitions if you can. They often work against the
idea of  a Ubiquitous Language.
You can read more about this here:
http://www.nabble.com/Help-with-regexp-in-matcher-to21425148.html
I realise that in your case you''re using | to work around Dutch grammar
(several ways to say "the"), and in this case I think | is ok.

You probably wanted this:

/^zou ik een melding moeten zien dat (?:de|het) (.*) is opgeslagen$/

Ik hoop dat dit helpt :-)

Aslak

> Any ideas?
> thanks,
> bartz
> _______________________________________________
> rspec-users mailing list
> rspec-users at rubyforge.org
> http://rubyforge.org/mailman/listinfo/rspec-users
>


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On 18 jan 2009, at 01:25, aslak hellesoy wrote:
>> On Sat, Jan 17, 2009 at 10:48 PM, Bart Zonneveld <zuperinfinite at
gmail.com
>> > wrote:
>> Hey gang,
>>
>> I find myself struggling with multiple step definitions in cucumber  
>> all the time. I regularly test the contents of my flash[:notice] in  
>> steps, since I think that''s part of the behaviour of the app.
So,
>> while implementing a new feature, I ran into the following error:
>>
>> /opt/local/lib/ruby/gems/1.8/gems/cucumber-0.1.15/bin/../lib/ 
>> cucumber/step_mother.rb:81:in `regexp_args_proc'': Multiple
step
>> definitions match "zou ik een melding moeten zien dat de reactie  
>> gemarkeerd is als spam": (Cucumber::Multiple)
>>
>> features/steps/comments.rb:93:in `/^zou ik een melding moeten zien  
>> dat de reactie gemarkeerd is als spam$/''
>> features/steps/common.rb:9:in `/^zou ik een melding moeten zien dat  
>> de|het (.*?) is opgeslagen$/''
>>
>> Even those who aren''t fluent in Dutch (since that''s
what the steps
>> are written in), it''s clearly not the same step... I am no
regex
>> wizard, so I might do something horribly wrong with my steps, but I  
>> do like to know how I can fix this.
>
> Step 1) Use rubular.com. It rocks. For this example you''ll see
that
> your string matches both regexen (and where in the regexen they match)
Ah, great tip! I managed to write this regex, which did exactly what I  
wanted:

/^zou ik een melding moeten zien dat (de|het) (.*?) is opgeslagen$/

> Step 2) Avoid | in Step definitions if you can. They often work  
> against the idea of  a Ubiquitous Language.
> You can read more about this here:
http://www.nabble.com/Help-with-regexp-in-matcher-to21425148.html
> I realise that in your case you''re using | to work around Dutch  
> grammar (several ways to say "the"), and in this case I think |
is ok.
I''ll read up on that thread, and hopefully find some good arguments to
drop the first person, since I think that''s the most descriptive.
> You probably wanted this:
>
> /^zou ik een melding moeten zien dat (?:de|het) (.*) is opgeslagen$/
>
> Ik hoop dat dit helpt :-)
Nice one! That is correct :)

thanks a million, once again!
bartz