11175
December 1, 2008, 7:14pm
1
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.
rab
December 1, 2008, 9:31pm
2
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
Rob@AgileConsultingLLC.com
11175
December 2, 2008, 12:05am
3
Rob Biedenharn wrote:
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
Rob@AgileConsultingLLC.com
Hey,
Thanks for the reply. The assert !l.valid? did not help. I still get the
same error.
When I run the command with the --trace command, I can see that rake
fails right after the execute db:test:purge step. I have included the
trace.
** Invoke test:units (first_time)
** Invoke db:test:prepare (first_time)
** Invoke db:abort_if_pending_migrations (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute db:abort_if_pending_migrations
** Execute db:test:prepare
** Invoke db:test:load (first_time)
** Invoke db:test:purge (first_time)
** Invoke environment
** Execute db:test:purge
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.
rab
December 2, 2008, 12:20am
4
I think you mean to have:
l.errors.on(:name)
Note: 'errors', not 'error'
-Rob
11175
December 2, 2008, 12:26am
5
Hey Rob,
That was a typo on my part. My code actually has l.errors.on(:name).
Heres the pastebin link to the code
http://pastebin.com/m7cae6ae3
Rob Biedenharn wrote:
I think you mean to have:
l.errors.on(:name)
Note: 'errors', not 'error'
-Rob
The error occurred while evaluating nil.
Otherwise the error object associated to the model will not have been
same error.
When I run the command with the --trace command, I can see that rake
fails right after the execute db:test:purge step. I have included the
trace.
Rob Biedenharn http://agileconsultingllc.com
Rob@AgileConsultingLLC.com
+1 513-295-4739
Skype: rob.biedenharn
Attachments:
http://www.ruby-forum.com/attachment/2996/ladder.rb
11175
December 2, 2008, 12:52am
6
I figured it out, and it was dumb!
I had commented out the test database settings from the database.yaml
file. uncommenting them fixed the problem
rab
December 2, 2008, 1:37am
7
the dumb ones hurt the most
-Rob
Rob Biedenharn http://agileconsultingllc.com
Rob@AgileConsultingLLC.com
