Rails - Apr 2008 - stubbing method which adds error to model

Hi,

I''m trying to stub a method for a model. Although I''m making
it work I
can''t find the best way to do it. This method is supposed to add an
error to my instance.

class User < ActiveRecord::Base
def my_special_method
# ... do somwthing before
  errors.add(:name, "wrong name")
end

class UserTest < Test::Unit::TestCase
def test_with_error
  u = User.new
  User.any_instance.stubs(:my_special_method).returns(lambda
{u.errors.add(:name, "wrong name")})
  foo = User.new
  foo.my_my_special_method
  pp foo.errors # <= works
  foo = User.new default_user
  foo.my_special_method
  pp foo.valid?
  pp foo.errors # <= still works
end

Only issue with this code is that it throws a warning from Mocha telling
me that lambda is deprecated. I can''t find a way to make it works in
any
other way though.
def test_with_error_case2
  u = User.new
  User.any_instance.stubs(:my_special_method).returns(u.errors.add(:name,
"wrong name"))
  foo = User.new
  foo.my_special_method
  pp foo.errors # <= can see the error
  foo.valid?
  foo.my_special_method
  pp foo #<= no error has been set
end
Adding times(n) to the stubs doesn''t help me.

Thank you for your help as I''m clearly missing something here

Vince
-- 
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On 11 Apr 2008, at 14:09, V. Vincesf wrote:
>
> class UserTest < Test::Unit::TestCase
> def test_with_error
>  u = User.new
>  User.any_instance.stubs(:my_special_method).returns(lambda
> {u.errors.add(:name, "wrong name")})
>  foo = User.new
>  foo.my_my_special_method
>  pp foo.errors # <= works
>  foo = User.new default_user
>  foo.my_special_method
>  pp foo.valid?
>  pp foo.errors # <= still works
> end
>
> Only issue with this code is that it throws a warning from Mocha  
> telling
> me that lambda is deprecated. I can''t find a way to make it works
in
> any
> other way though.
in your lambda, you are referencing u, so when you call  
my_special_method on foo, it is still adding the errors to u.  
Fundamentally though stubs aren''t really suppose to do anything,  
whereas you are trying to make them do something.

Fred
>
> def test_with_error_case2
>  u = User.new
>   
> User 
> .any_instance.stubs(:my_special_method).returns(u.errors.add(:name,
> "wrong name"))
>  foo = User.new
>  foo.my_special_method
>  pp foo.errors # <= can see the error
>  foo.valid?
>  foo.my_special_method
>  pp foo #<= no error has been set
> end
> Adding times(n) to the stubs doesn''t help me.
>
> Thank you for your help as I''m clearly missing something here
>
> Vince
> -- 
> Posted via http://www.ruby-forum.com/.
>
> >

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