Question

Let’s say that I have the following code in application_helper.rb:

def do_something  if action_name == 'index'    'do'  else    'dont'  end end 

which will do something if called within index action.

Q: How do I rewrite the helper spec for this in application_helper_spec.rb to simulate a call from ‘index’ action?

describe 'when called from 'index' action' do   it 'should do' do     helper.do_something.should == 'do' # will always return 'dont'   end end  describe 'when called from 'other' action' do   it 'should do' do     helper.do_something.should == 'dont'   end end 

Answer 1

You can stub action_name method to whatever value you want:

describe 'when called from 'index' action' do   before     helper.stub!(:action_name).and_return('index')   end   it 'should do' do     helper.do_something.should == 'do'   end end  describe 'when called from 'other' action' do   before     helper.stub!(:action_name).and_return('other')   end   it 'should do' do     helper.do_something.should == 'dont'   end end