uninitialized constant Test::Unit::TestCase::Assertions (NameError)

[Znow]

Hi there.

I get this error, EVERY time I try run guard or bundle exec rspec or similar..

ive tried googling the error for the past couple of hours and days.

the full error msg:

/home/dg/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/test/unit/testcase.rb:9:in <class:TestCase>': uninitialized constant Test::Unit::TestCase::Assertions (NameError)
from /home/dg/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/test/unit/testcase.rb:8:inmodule:Unit'
from /home/dg/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/test/unit/testcase.rb:4:in <module:Test>'
from /home/dg/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/test/unit/testcase.rb:3:in'
from /home/dg/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/test/unit.rb:5:in <top (required)>'
from /home/dg/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/test/unit/assertions.rb:4:in'
from /home/dg/.rvm/gems/ruby-1.9.2-p290/gems/rspec-rails-2.7.0/lib/rspec/rails/adapters.rb:2:in <top (required)>'
from /home/dg/.rvm/gems/ruby-1.9.2-p290/gems/rspec-rails-2.7.0/lib/rspec/rails.rb:10:in'
from /home/dg/Projects/advicecapital/spec/spec_helper.rb:4:in <top (required)>'
from /home/dg/Projects/advicecapital/spec/models/user_spec.rb:1:inrequire'
from /home/dg/Projects/advicecapital/spec/models/user_spec.rb:1:in <top (required)>'
from /home/dg/.rvm/gems/ruby-1.9.2-p290/gems/rspec-core-2.7.1/lib/rspec/core/configuration.rb:459:inload'
from /home/dg/.rvm/gems/ruby-1.9.2-p290/gems/rspec-core-2.7.1/lib/rspec/core/configuration.rb:459:in block in load_spec_files'
from /home/dg/.rvm/gems/ruby-1.9.2-p290/gems/rspec-core-2.7.1/lib/rspec/core/configuration.rb:459:inmap'
from /home/dg/.rvm/gems/ruby-1.9.2-p290/gems/rspec-core-2.7.1/lib/rspec/core/configuration.rb:459:in load_spec_files'
from /home/dg/.rvm/gems/ruby-1.9.2-p290/gems/rspec-core-2.7.1/lib/rspec/core/command_line.rb:18:inrun'
from /home/dg/.rvm/gems/ruby-1.9.2-p290/gems/rspec-core-2.7.1/lib/rspec/core/runner.rb:80:in run_in_process'
from /home/dg/.rvm/gems/ruby-1.9.2-p290/gems/rspec-core-2.7.1/lib/rspec/core/runner.rb:69:inrun'
from /home/dg/.rvm/gems/ruby-1.9.2-p290/gems/rspec-core-2.7.1/lib/rspec/core/runner.rb:10:in `block in autorun'

thanks in advance

[justinko]

Are you including the assertions like this?

RSpec.configure do |config|
  config.expect_with :stdlib
  config.include ActiveSupport::Testing::Assertions
end

[Znow]

I just included that in my spec_helper.rb - but getting the same error

[jonolsson]

I had the same problem, and got it working by adding
require 'test/unit'
to the top of spec/spec_helper.rb

[Znow]

yep that sorted the issue, thanks.

but still, it should be fixed from within rspec

[kinopyo]

I encountered same issue. @helloworld's solution worked.
But still same option with @Znow, it should be fixed from within rspec.

[justinko]

You should not have to require test/unit. I'd like to see what you've got in your spec_helper.rb

[kinopyo]

@justinko, I think my spec_helper.rb is almost same as default.

Here is the codes without comments.

ENV["RAILS_ENV"] ||= 'test'
require File.expand_path("../../config/environment", __FILE__)
require 'rspec/rails'
Dir[Rails.root.join("spec/support/**/*.rb")].each {|f| require f}

RSpec.configure do |config|
  config.mock_with :rspec

  config.fixture_path = "#{::Rails.root}/spec/fixtures"
  config.use_transactional_fixtures = true
end

If I don't put require 'test/unit' I would get the error.

[Znow]

@justinko - The issue is we have to include it? Thats why this issue is here.

my spec_helper.rb is exact as @kinopyo - default spec_helper

[justinko]

@kinopyo - looking at what you pasted, you need to add this line:

config.expect_with :stdlib

That will load in the T/U assertions.

[myronmarston]

@justinko--for T/U assertion usage with rspec-core, you're right. However, looking at the backtrace from @Znow, it appears to be an rspec-rails issue. The backtrace shows that rspec rails is requiring "test/unit/assertions" (here) and that is generating this error, even though he may not want to specifically use the test unit assertions (and hence, shouldn't have to configure expect_with :stdlib). Maybe we need to add a require 'test/unit' to rspec-rails so it doesn't trigger this error?

[myronmarston]

@Znow--in the future, please try to report issues involving rspec-rails (especially when rspec-rails is in the backtrace) to the rspec-rails issue tracker. In that would have cut down on the miscommunication on this thread. @justinko assumed you were reporting an rspec-core issue since you reported it to rspec-core.

[justinko]

This issue is really bizarre.

If you look at the stack trace, all of the necessary files are being required. The error is basically saying that a module (Assertions) doesn't exist. The exception occurs in this file, which you can see that the Assertions module is being required.

Obviously, if this was a "user wide" problem, blowing up every Rails app, it'd be fixed by now. I think the issue is specific to their environment.

@Znow - can you paste your Gemfile? I'm stumped, and that's all I can think of.

Hmm, maybe @dchelimsky has an idea.

P.S. @myronmarston - your hyphens are blocking github from "tagging" the username.

[Znow]

@myronmarston - okay...

@justinko - https://github.com/Znow/advicecapital/blob/master/Gemfile <- this is a Gemfile for a larger project, but still the same issue. I had to manually require 'test/unit' in spec_helper

[justinko]

@Znow - 3 things:

1.) You have minitest included twice in the Gemfile.
2.) You don't need to include minitest. It is part of the Ruby 1.9 standard library.
3.) No need to have :require => 'spec'

I'm confident fixing those 3 things will fix this issue.