[rspec-users] newbie: need help to write the spec for helper

David Chelimsky dchelimsky at gmail.com
Wed Dec 31 11:02:05 EST 2008


On Wed, Dec 31, 2008 at 9:49 AM, aslak hellesoy
<aslak.hellesoy at gmail.com> wrote:
>
>
> On Wed, Dec 31, 2008 at 4:21 PM, David Chelimsky <dchelimsky at gmail.com>
> wrote:
>>
>> On Wed, Dec 31, 2008 at 8:00 AM, Nasir Jamal <nas35_in at yahoo.com> wrote:
>> > Hi,
>> >
>> > I am a rspec newbie, can anyone guide me on how to write a spec for the
>> > below helper.
>> >
>> > module MyHelper
>> >  def test
>> >    link_to('MyLink', resources_path) if @categories || @sub_categories
>> >  end
>> > end
>> >
>> > @categories is an instance of Category model
>> > @sub_categories is an instance of SubCategory model
>>
>> Take a look at http://rspec.info/documentation/rails/writing/helpers.html.
>> You can use assigns[:categories] and assigns[:sub_categories] to make
>> the necessary data available to the helper.
>
> Technically you can do it that way, but personally I don't recommend that
> approach in most cases. Testing modules is similar to testing private
> methods, and the general advice is: Don't do it.
>
> Instead, test module methods and private methods indirectly via the
> class/object that uses them. For modules this means: Write a spec for a
> class that includes the module (in Rails this is a controller or view).

So do you recommend never doing helper specs?

>
> Aslak
>
>>
>> HTH,
>> David
>>
>> >
>> >
>> >
>> >
>> > _______________________________________________
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>> > rspec-users at rubyforge.org
>> > http://rubyforge.org/mailman/listinfo/rspec-users
>> >
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>
>
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