rspec users - Apr 2009 - undefined local variable or method `params'' for #<Spec

following is the method of the helper

module ApplicationHelper
  def tab_class(tab)
    ''class="active"'' if tab == params[:controller]
  end
end

i write the spec method as follows

describe ApplicationHelper do
   it "should be active if controller is same" do
    tab_class(''royalty_statement'').should
include(''active'')
   end
end

it gives me following error

undefined local variable or method `params'' for
#<Spec::Rails::Example::RailsExa
mpleGroup::Subclass_1:0x5234150>

Regards

Salil
-- 
Posted via http://www.ruby-forum.com/.

> it gives me following error
> 
> undefined local variable or method `params'' for
That''s normal. Remember that params exists because there is an http 
request issued. In your spec, you don''t tell Rspec anything about any 
request. So you could create a mock for params. If I recall correctly 
you would have to do something like this:

describe ApplicationHelper do
   it "should be active if controller is same" do
    controller.params = {:controller => ''whatever_value''}
    tab_class(''royalty_statement'').should
include(''active'')
   end
end
-- 
Posted via http://www.ruby-forum.com/.

Fernando Perez wrote:
>> it gives me following error
>> 
>> undefined local variable or method `params'' for
> 
> That''s normal. Remember that params exists because there is an
http
> request issued. In your spec, you don''t tell Rspec anything about
any
> request. So you could create a mock for params. If I recall correctly 
> you would have to do something like this:
Thanx fernando
i try the following

it "should be active if controller is same" do
    params = {:controller => ''royalty_statement''}
    tab_class(''royalty_statement'').should
include(''active'')
  end

but it doesn''t work out. it gives me same error as previus.

-- 
Posted via http://www.ruby-forum.com/.

> it "should be active if controller is same" do
>     params = {:controller => ''royalty_statement''}
>     tab_class(''royalty_statement'').should
include(''active'')
>   end
> 
> but it doesn''t work out. it gives me same error as previous.
Nah it doesn''t work that way, because remember that RSpec is just Ruby
code. ''it'' is just a method, "should be active ..."
is just an argument,
and then you specify a block of code.

So when you define params = ..., you are actually defining a local
variable, but that variable is not available inside the controller when
the spec is run. That''s why I find controllers so painful to spec. I
prefer to use cucumber and webrat for that purpose.

Anyway, I thought that setting controller.params would do the trick but
no.

Maybe you''ll have to force a get request then?  so it would be:
get :action_name

We need to wait for rspec-rails experts advice.

By the way the same problem applies to session, so you might be luckier
looking for info about simulating session in rspec and then apply the
same technique to params.
-- 
Posted via http://www.ruby-forum.com/.

Try with that:

controller.stub!(:params).and_return({:controller => 
''your_controller_name''})
-- 
Posted via http://www.ruby-forum.com/.

> Try with that:
> 
> controller.stub!(:params).and_return({:controller => 
> ''your_controller_name''})
Nah it doesn''t work out,gives same error.
neways thanx for the info.
-- 
Posted via http://www.ruby-forum.com/.

Hi All,

Any Update on this topic.

I still not found any solution for a following method.

 it "should be active if controller is same" do
    tab_class(''tab'').should
include(''active'')
  end


Regards,

Salil
-- 
Posted via http://www.ruby-forum.com/.

On Mon, Jun 8, 2009 at 12:21 AM, Salil Gaikwad<lists at ruby-forum.com>
wrote:
> Hi All,
>
> Any Update on this topic.
>
> I still not found any solution for a following method.
>
> ?it "should be active if controller is same" do
> ? ?tab_class(''tab'').should
include(''active'')
> ?end
Please read http://wiki.github.com/dchelimsky/rspec/get-in-touch and
try again. There is a lot of missing context information here.

Thanks,
David
>
>
> Regards,
>
> Salil
> --
> Posted via http://www.ruby-forum.com/.
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