[rspec-users] How to spec a Rails helper method

David Chelimsky dchelimsky at gmail.com
Mon Nov 24 10:48:42 EST 2008


On Fri, Nov 21, 2008 at 12:18 PM, Nick Hoffman <nick at deadorange.com> wrote:
> I'm trying to write specs for a helper method that I'm creating, but my
> specs are failing to find the helper method
>
> # app/helpers/properties_helper.rb
> module PropertiesHelper
>  def format_utilities(utilities)
>  end
> end
>
> # spec/helpers/properties_helper_spec.rb
> require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
>
> describe PropertiesHelper do
>  describe '#format_utilities' do
>    it 'should format a utilities value' do
>      format_utilities(nil).should == 'Unknown'
>    end
>  end
> end
>
> The error that's occuring is:
>
> NoMethodError in 'PropertiesHelper#format_utilities should format a
> utilities value'
> undefined method `format_utilities' for
> #<Spec::Rails::Example::HelperExampleGroup::Subclass_1::Subclass_1:0x22a121c>
> /Users/nick/src/housing-rentals/vendor/plugins/factories-and-workers/lib/factories-and-workers/factory_builder.rb:36:in
> `method_missing'
> ./spec/helpers/properties_helper_spec.rb:7:
> script/spec:4:
>
> As far as I can tell, my specs match what was recommended back in March 2008
> in this thread:
>  http://www.ruby-forum.com/topic/145723

March is a long time ago :)

Use helper. format_utilities ...

Read this http://rspec.info/documentation/rails/writing/helpers.html
and if you're still unsure feel free to write back.

Cheers,
David

>
> Any suggestions?
> -Nick
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