[rspec-users] Reuse of Cucumber Features

Steve Molitor stevemolitor at gmail.com
Sun Dec 14 12:15:54 EST 2008


Thanks -- that gets me closer.  Here's an example.  Let's say I have two
features, 'Create new patient' and 'Create new incident'.  To create a new
patient you have to enter a valid birth date.  To create a new patient you
must enter a valid birth date.  To create a new incident you must enter a
valid incident date.  The rules for date entry are the same:
Feature:  Date entry

  Scenario: Invalid month
  When I fill in the date value with "13/01/2000"
  I should see "Invalid date..."

  Scenario: Invalid year (not 4 digits)
  When I fill in the date value with "13/01/00"
  I should see "Invalid date..."

  Scenario: Separate with slashes (ok)
  When I fill in the date value with "01/13/2000"
  I should see "valid date..."

  Scenario: Separate with dashes (ok)
  When I fill in the date value with "01-13-2000"
  I should see "valid date..."

  .... etc....

Given the above, how should I write the 'create new patient' and 'create new
incident' features?  I don't want to copy and paste all the date related
scenarios, but I do want to specify (and test) that the patient birth date
and incident date fields conform to the general date rules.  Here's how the
'create new patient' and 'create new incident' features would look with some
copy and pasting:

Feature: Create new Patient

Scenario:  Enter invalid birth date
  Given I fill in "birth date" with "13/01/2000"
  And I fill in "patient name" with "Sam Smith"
  When I press "Save"
  I should see "Invalid birth date '13/01/2000'"

Scenario:  Enter valid birth date, valid name
  Given I fill in "birth date" with "01/13/2000"
  And I fill in "patient name" with "Sam Smith"
  When I press "Save"
  I should see "Patient Created Successfully"

Scenario:  Enter valid birth date with dashses.....
-------

Feature: Create new Incident

Scenario:  Enter invalid incident date
  Given I fill in "incident" with "13/01/2000"
  And I fill in "supervisor" with "Sam Smith"
  When I press "Save"
  I should see "Invalid incident date '13/01/2000'"

Scenario:  Enter valid incident date, valid supervisor
  Given I fill in "incident date" with "01/13/2000"
  And I fill in "supervisor" with "Sam Smith"
  When I press "Save"
  I should see "Incident Created Successfully"

Scenario:  Enter valid incident date with dashes....
-----

Am I making sense?  I want to specify the date in the features, as there may
be extra requirements like birth dates can not be in the future in addition
to the generic date requirements.  And I want to validate that the form
checks for valid dates, displays the appropriate error message when invalid,
and uses the common rules for parsing.  But I don't want to copy and paste
those scenarios in every feature.  I think reusing steps as you mention is
probably the solution but I'm stuck on how to word it and put it together in
my case.

Steve

On Sun, Dec 14, 2008 at 8:41 AM, Matt Wynne <matt at mattwynne.net> wrote:

>
> On 13 Dec 2008, at 20:58, Steve Molitor wrote:
>
>  What's the best way to handle a requirement that shows up as a
>> sub-requirement requirement in other features?  For example let's say users
>> can enter dates in various forms throughout my application.   There is one
>> set of global rules specifying the formats in which dates may be entered,
>> and how they are interpreted.  I put that in one feature.  In various other
>> features, like 'Create new patient', one can enter dates, like the patient's
>> birth date.  I want to do something like 'and the date entry shall follow
>> the normal rules' but I'm not sure how to do that in an example driven way,
>> without copying and pasting from other features.
>>
>> Does my question make sense?  Any suggestions?
>>
>
> Do you know that you can call steps within steps?
> http://blog.mattwynne.net/2008/11/14/dry-up-your-cucumber-steps/
>
> Is that what you're looking for?
>
> Matt Wynne
> http://blog.mattwynne.net
> http://www.songkick.com
>
> _______________________________________________
> rspec-users mailing list
> rspec-users at rubyforge.org
> http://rubyforge.org/mailman/listinfo/rspec-users
>
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