Rails - Nov 2007 - validate_presence_of unit testing with if condition

In the layer.rb model, I have

  validates_presence_of   :data_source
  validates_presence_of   :url,   :if => :other_dataset?

  def other_dataset?
    data_source == ''other''
  end


When I tried to do the unit testing,

  def test_when_datasource_is_other
    layer = Layer.new(:data_source =>''other'', :url =>
nil)
    assert !layer.valid?
    assert layer.errors.invalid?(:url)
  end

it keeps throw me an error:
NoMethodError: undefined method `data_source='' for
#<Layer:0x311bce8>
-- 
Posted via http://www.ruby-forum.com/.

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does your table have a column with the name ''data_source'' ?
if this is only temporary data, you must define it with
attr_accessor :data_source
-- 
Posted via http://www.ruby-forum.com/.

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Thorsten Muller wrote:
> does your table have a column with the name ''data_source''
?
> if this is only temporary data, you must define it with
> attr_accessor :data_source
Yes, the layers table has a string type column named
''data_source''
-- 
Posted via http://www.ruby-forum.com/.

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Ensure your test database is up to date schema-wise.

rake db:test:clone

If you recently did a migrate, that puts your test db out of sync.

I''ve got a plugin I''ll release soon that just makes db:migrate
do the
db:test:clone step automatically (cos I always forget to do that when I run
tests in textmate)


On Nov 14, 2007 12:01 PM, Joan Gu
<rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org> wrote:
>
> Thorsten Muller wrote:
> > does your table have a column with the name
''data_source'' ?
> > if this is only temporary data, you must define it with
> > attr_accessor :data_source
>
> Yes, the layers table has a string type column named
''data_source''
> --
> Posted via http://www.ruby-forum.com/.
>
> >
>
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