uninitialized constant Capybara::RSpecMatchers

[Linuus]

Hi

I got this error today:

    uninitialized constant Capybara::RSpecMatchers (NameError)

The error originated from https://github.com/blowmage/minitest-rails-capybara/blob/master/lib/minitest/rails/capybara.rb#L11

So I had to require the matchers explicitly in my test_helper, like this:

    require "capybara/rspec/matchers"
    require "minitest/rails/capybara"

So, adding the require to capybara.rb should fix the issue.

EDIT: Using Rails 4 btw

[potenza]

Running into the same problem with Rails 4. Doing what @Linuus suggested worked for me too.

[blowmage]

I think this might be a problem with minitest-capybara 0.3. Try downgrading to 0.2 and see if that helps. I have some commits in that I'm waiting for before releasing a new version.

[phuwanart]

I had to require like this:

ENV["RAILS_ENV"] = "test"
require File.expand_path("../../config/environment", __FILE__)
require "rails/test_help"
require "minitest/rails"
require "capybara/rails"
require "capybara/rspec/matchers"
require "minitest/rails/capybara"

for solved this issue.

[allaire]

thanks @neokain it worked for me too..

I had a different error:

uninitialized constant MiniTest::Capybara::Assertions::Capybara (NameError)

Perhaps, do you also have the DEPRECATION warning?

DEPRECATION WARNING: It looks like you are using test helper generated by an older version of minitest-rails. Please upgrade your test_helper by following the instructions below. Support for this older helper will removed when minitest-rails reaches 1.0 release.

I still get it, even with that require order... weird.

[phuwanart]

Hi @allaire, I don't have DEPRECATION WARNING.

Make sure your Gemfile is:

gem 'minitest-rails'
group :test do
  gem "minitest-rails-capybara"
end

and full minitest_helper.rb is:

ENV["RAILS_ENV"] = "test"
require File.expand_path("../../config/environment", __FILE__)
require "rails/test_help"
require "minitest/rails"
require "capybara/rails"
require "capybara/rspec/matchers"
require "minitest/rails/capybara"

class ActionDispatch::IntegrationTest
  include Rails.application.routes.url_helpers
  include Capybara::RSpecMatchers
  include Capybara::DSL
end

the require order is important, I try to reorder require it make error.

If you still have DEPRECATION WARNING I don't know why.

[blowmage]

This will be fixed in the release 0.10.0 coming later today. The gem minitest-capybara changed which causes this error. Moving forward minitest-capybara is going to provide assertions and expectations directly instead of relying on minitest-matchers and the Capybara::RSpecMatchers module. This likely won't make any difference to your tests, but I'm releasing a new point release just in case.

[allaire]

I don't know if this is related, but I keep having

# Running tests:

Finished tests in 0.000524s, 0.0000 tests/s, 0.0000 assertions/s.

0 tests, 0 assertions, 0 failures, 0 errors, 0 skips

at the end of any rake task I type after upgrading.

[blowmage]

@allaire Are you using minitest's spec DSL and do you have RSpec loaded? RSpec likes to stomp all over minitest's spec DSL.

[allaire]

I'm using an hybrid between minitest spec DSL, RSpec is not not loaded/in gemfile.lock

class OrganizationTest < ActiveSupport::TestCase
  it 'must create a new organization' do
    organization = FactoryGirl.create(:organization)
    organization.name.wont_be_empty
  end
end

[allaire]

Solved it with a bundle update, weird.

[blowmage]

Please upgrade to 0.10 and let me know if you are still having problems. Thanks!

[cinnamonshop]

Works for me, but the README may need to be updated (e.g. the IntegrationTest instructions which will cause this same error without including "capybara/rspec/matchers", and also the references to minitest_helper.rb).

[blowmage]

I've updated the README. You shouldn't need to include capybara/rspec/matchers as minitest-capybara no longer uses them. Thanks!