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

Nick Hoffman nick at deadorange.com
Fri Nov 21 13:18:38 EST 2008


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

Any suggestions?
-Nick


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