On Dec 1, 2008, at 2:14 PM, Maulin Pathare wrote:
> Hello,
> I am a rails beginner and am having some trouble running the unit
> tests
> using rake. i am following the example in the simply rails 2 book.
>
> I have a simple model with one field "name" and a validation for name
> that it cannot be empty
>
> my test file looks like this
>
>
> 1. require 'test_helper'
> 2.
> 3. class LadderTest < ActiveSupport::TestCase
> 4.
> 5. def test_create_ladder_name_error
> 6. l = Ladder.create(:name => nil)
> 7. assert l.error.on(:name)
> 8. end
> 9.
> 10. end
>
> When I run rake test:units from the shell I get the following error
>
> rake aborted!
> You have a nil object when you didn't expect it!
> You might have expected an instance of ActiveRecord::Base.
> The error occurred while evaluating nil.[]
>
> I am running rails version 2.2.2
>
> Does anyone know whats wrong? Thanks.
Perhaps you need a line between 6 & 7 with:
assert !l.valid?
Otherwise the error object associated to the model will not have been
created.
-Rob
Rob Biedenharn http://agileconsultingllc.com
[EMAIL PROTECTED]
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