I’m developing a FormBuilder (let’s say LabelledFormBuilder), and I
created a helper called labelled_form_for to put the “:builder =>
LabelledFormBuilder” in options and call the original form_for, like
suggested on the Rails API ( http://liten.be//0EBtc ).
I wrote this test:
it 'should return a form with "labelled_form" class' do user = mock_model(User) helper.labelled_form_for(user).should have_tag('form[class=labeled_form]') end
but, I got a "The error occurred while evaluating nil.<< " right on I
form_for(record, *(args << options.merge(:builder => LabelledFormBuilder)), &proc)
Well, when I test on the browser, no error ocurrs.
Someone can help?