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
- require ‘test_helper’
-
- class LadderTest < ActiveSupport::TestCase
-
- def test_create_ladder_name_error
-
l = Ladder.create(:name => nil)
-
assert l.error.on(:name)
- end
-
- 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.
On Dec 1, 2008, at 2:14 PM, Maulin P. 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 B. http://agileconsultingllc.com
[email protected]
Rob B. wrote:
On Dec 1, 2008, at 2:14 PM, Maulin P. 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 B. http://agileconsultingllc.com
[email protected]
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.[]
/usr/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/tasks/databases.rake:341
/usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:617:in call' /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:617:in execute’
/usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:612:in each' /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:612:in execute’
/usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:578:in
invoke_with_call_chain' /usr/lib/ruby/1.8/monitor.rb:242:in synchronize’
/usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:571:in
invoke_with_call_chain' /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:588:in invoke_prerequisites’
/usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:585:in each' /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:585:in invoke_prerequisites’
/usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:577:in
invoke_with_call_chain' /usr/lib/ruby/1.8/monitor.rb:242:in synchronize’
/usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:571:in
invoke_with_call_chain' /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:564:in invoke’
/usr/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/tasks/databases.rake:372
/usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:617:in call' /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:617:in execute’
/usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:612:in each' /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:612:in execute’
/usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:578:in
invoke_with_call_chain' /usr/lib/ruby/1.8/monitor.rb:242:in synchronize’
/usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:571:in
invoke_with_call_chain' /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:588:in invoke_prerequisites’
/usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:585:in each' /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:585:in invoke_prerequisites’
/usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:577:in
invoke_with_call_chain' /usr/lib/ruby/1.8/monitor.rb:242:in synchronize’
/usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:571:in
invoke_with_call_chain' /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:564:in invoke’
/usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:2019:in invoke_task' /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1997:in top_level’
/usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1997:in each' /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1997:in top_level’
/usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:2036:in
standard_exception_handling' /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1991:in top_level’
/usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1970:in run' /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:2036:in standard_exception_handling’
/usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1967:in run' /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/bin/rake:31 /usr/bin/rake:19:in load’
/usr/bin/rake:19
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 B. wrote:
I think you mean to have:
l.errors.on(:name)
Note: ‘errors’, not ‘error’
-Rob
On Dec 1, 2008, at 7:05 PM, Maulin P. wrote:
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 B. http://agileconsultingllc.com
[email protected]
+1 513-295-4739
Skype: rob.biedenharn
I think you mean to have:
l.errors.on(:name)
Note: ‘errors’, not ‘error’
-Rob
On Dec 1, 2008, at 7:05 PM, Maulin P. wrote:
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 B. http://agileconsultingllc.com
[email protected]
+1 513-295-4739
Skype: rob.biedenharn
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 
On Dec 1, 2008, at 7:52 PM, Maulin P. wrote:
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 
the dumb ones hurt the most 
-Rob
Rob B. http://agileconsultingllc.com
[email protected]