[rspec-users] Testing forms

[Brennon Bortz]

I'm testing a view that renders a form to edit an object.  I'd like to test 
that the form correctly populates the form with the object's attributes' 
current values.  I tried several variations on mock_model and stub_model in 
order to maintain view/model separation--for instance:

require "spec_helper"

describe "informational_widget_frameworks/edit.html.erb" do
  describe "rendered items" do
    before(:each) do
      @iwf = mock_model(InformationalWidgetFramework,
        :heading => "IWF Heading",
      ).as_null_object
      assign(:informational_widget_framework, @iwf)
      render
    end
    
    it "should show 'IWF Heading'" do
      rendered.should include("IWF Heading")
    end
  end
end

However, when the view is rendered, the value for the text_field bound to 
@informational_widget_framework.heading is populated with 
"InformationalWidgetFramework_1025".  I've tried changing the example to:

it "should show 'IWF Heading'" do
  @iwf.should_receive(:heading).and_return("IWF Heading")
  rendered.should include("IWF Heading")
end

But, this gives the same results.  Using stub_model similarly doesn't populate 
the form fields with anything at all.  The only way I can get these examples to 
pass is by using the following for my before block:

before(:each) do
  @iwf = InformationalWidgetFramework.create(
    :heading => "IWF Heading",
  )

  assign(:informational_widget_framework, @iwf)
  render
end

I'm clearly missing something here...can someone clue me in?

Thanks.

Brennon Bortz
Software Researcher
Dundalk Institute of Technology
brennon.bo...@casala.ie
Ph.D. Researcher & Composer - Sonic Arts Research Centre
Queen's University, Belfast
bren...@brennonbortz.com / bbort...@qub.ac.uk


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