Hi,
I am a newbie to Rails 3 and Rspec. Kindly excuse my being a novice.
I am trying to implement RSpec with Rails 3. I am using Rails 3.0.3 with
Ruby 1.9.2 on Ubuntu 10.04 os. I am using rspec 2.5 gem and rspec-rails
2.5 gem.
I am referring to the following tutorial:-
http://www.railsfire.com/article/rspec-behaviour-driven-development-testing-framework
This tutorial is implemented on Rails 2.x with an older version of rspec
and rspec-rails.
I tried to implement exactly the same tutorial with my
configuration, but I have run into some issues. I am unable to figure
out what I must have done wrong.
I am sure about one thing that I am not using the rails_scaffold
generator as used in this tutorial. Instead of using the
rails_scaffold generator, I made use of the following command rails g scaffold post title:string body:text
I don’t seem to have it(rspec_scaffold) in my list of generators which
as part of Rails 3 and the additional ones that will come with Rspec.
The error I am getting is :-
mohnish@mohnish-desktop:~/rails_testing/10Mar11/rspec_demo5$ rake
spec
(in /home/mohnish/rails_testing/10Mar11/rspec_demo5)
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.[]
(See full trace by running task with --trace)
mohnish@mohnish-desktop:~/rails_testing/10Mar11/rspec_demo5$ rake
spec --trace
(in /home/mohnish/rails_testing/10Mar11/rspec_demo5)
** Invoke spec (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.[]
/home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.3/lib/active_record/railties/databases.rake:429:in
block (3 levels) in <top (required)>' /home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:636:in call’
/home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:636:in
block in execute' /home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:631:in each’
/home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:631:in
execute' /home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:597:in block in invoke_with_call_chain’
/home/mohnish/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/monitor.rb:201:in
mon_synchronize' /home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:590:in invoke_with_call_chain’
/home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:607:in
block in invoke_prerequisites' /home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:604:in each’
/home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:604:in
invoke_prerequisites' /home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:596:in block in invoke_with_call_chain’
/home/mohnish/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/monitor.rb:201:in
mon_synchronize' /home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:590:in invoke_with_call_chain’
/home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:583:in
invoke' /home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.3/lib/active_record/railties/databases.rake:460:in block (3 levels) in <top (required)>’
/home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:636:in
call' /home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:636:in block in execute’
/home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:631:in
each' /home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:631:in execute’
/home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:597:in
block in invoke_with_call_chain' /home/mohnish/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/monitor.rb:201:in mon_synchronize’
/home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:590:in
invoke_with_call_chain' /home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:607:in block in invoke_prerequisites’
/home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:604:in
each' /home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:604:in invoke_prerequisites’
/home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:596:in
block in invoke_with_call_chain' /home/mohnish/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/monitor.rb:201:in mon_synchronize’
/home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:590:in
invoke_with_call_chain' /home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:583:in invoke’
/home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:2051:in
invoke_task' /home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:2029:in block (2 levels) in top_level’
/home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:2029:in
each' /home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:2029:in block in top_level’
/home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:2068:in
standard_exception_handling' /home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:2023:in top_level’
/home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:2001:in
block in run' /home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:2068:in standard_exception_handling’
/home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/lib/rake.rb:1998:in
run' /home/mohnish/.rvm/gems/ruby-1.9.2-p180/gems/rake-0.8.7/bin/rake:31:in <top (required)>’
/home/mohnish/.rvm/gems/ruby-1.9.2-p180/bin/rake:19:in load' /home/mohnish/.rvm/gems/ruby-1.9.2-p180/bin/rake:19:in ’
mohnish@mohnish-desktop:~/rails_testing/10Mar11/rspec_demo5$
Any suggestions on what I must be doing wrong and how to fix the same.
Kindly help.
Thank you very much.
