[rspec-users] Problem with testing helper

Ivo Dancet caifara.subscribe at gmail.com
Tue Dec 30 10:14:08 EST 2008


Hi

I bumped into a problem and tracked it down to this:

Form tag helpers in helpers do not seem to be testable. The helper  
does actually work like it should if used in a view.

Example:

This helper:
#############
def form_builder
   form_tag "foo" do
     text_field_tag("bar")
   end
end


And this spec:
#############
it "should make a form" do
   form_builder.should have_tag("form")
end


throws:
#############
undefined method `output_buffer=' for  
#<Spec::Rails::Example::HelperExampleGroup::Subclass_1:0x2670ac8>


with trace:
#############
/Library/Ruby/Gems/1.8/gems/actionpack-2.2.2/lib/action_controller/ 
test_process.rb:471:in `method_missing'
/Library/Ruby/Gems/1.8/gems/actionpack-2.2.2/lib/action_view/helpers/ 
capture_helper.rb:132:in `with_output_buffer'
/Library/Ruby/Gems/1.8/gems/actionpack-2.2.2/lib/action_view/helpers/ 
capture_helper.rb:39:in `capture'
/Library/Ruby/Gems/1.8/gems/actionpack-2.2.2/lib/action_view/helpers/ 
form_tag_helper.rb:460:in `form_tag_in_block'
/Library/Ruby/Gems/1.8/gems/actionpack-2.2.2/lib/action_view/helpers/ 
form_tag_helper.rb:39:in `form_tag'


rspec and rspec-rails 1.1.11, rails 2.2.2

Any clues?

Thanks
-c




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