On Feb 8, 2015, at 11:07 AM, Иван Бишевац <ivan.bise...@gmail.com> wrote:

> User.find(1)
> for no record with gives:
> 
> def test_error_message
>   begin
>     User.find(1)
>   rescue ActiveRecord::RecordNotFound => e
>     message = e.message
>   end
> 
>   assert_equal message, "Couldn't find User with 'id'=1"
> end
> 
> 
> I expected same behavior wiht find_by! method but it doesn't give so 
> descriptive message.
> For example expected behavior should be:
> 
> def test_error_message_for_find_by!
>   begin
>     User.find_by(first_name: 'foo', last_name: 'bar')
>   rescue ActiveRecord::RecordNotFound => e
>     message = e.message
>   end
> 
>   assert_equal message, "Couldn't find User with 'first_name'='foo' and 
> 'last_name'='bar'"
> end
> 
> but it doesn't work like this instead e.message is just general "Couldn't 
> find User”.

See also discussion on this PR:

https://github.com/rails/rails/pull/15791

and the related issue:

https://github.com/rails/rails/issues/15792

—Matt Jones

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