spork 0.9.2 and rspec 3.0.0 = uninitialized constant RSpec::Core::CommandLine (NameError)

Question

Im using spork 0.9.2 and rspec 3.0.0. When trying to run test rspec --drb I have an exception

C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems

Answer 1

The reason is that RSpec::Core::CommandLine was removed in Rspec3

https://github.com/rspec/rspec-core/blob/master/Changelog.md

Merge RSpec::Core::CommandLine (never formally declared public) into RSpec::Core::Runner. (Myron Marston)

But spork depends on this code.

There is already an issue on spork's github and a solution can be found in a following spork's fork:

https://github.com/codecarson/spork/commit/38c79dcedb246daacbadb9f18d09f50cc837de51#diff-937afaa19ccfee172d722a05112a7c6fL6

In general - replace

::RSpec::Core::CommandLine.new(argv).run(stderr, stdout)

with

::RSpec::Core::Runner.run(argv,stderr, stdout)

in the soprks source code

Answer 2

I had this same problem. Sans digging into the rspec3 source code, removing the --drb line from my .rspec file fixed the problem for me. Some Guardfile examples also have use of the --drb which causes issues for me. Once removed all tests work fine.

Answer 3

Same thing here. Just remove the "--drb" line from .spec file and remove the cli: '--drb' parameter on the guard :rspec... line within the Guardfile. This does not turn off spork. It just turn off the "distributed ruby" (--drb) Rspec option. As guard knows you are running Rspec through Spork, it is not needed.

Answer 4

I started using Spring instead of Spork and that solved it.

It seems to be the new Rails way: http://edgeguides.rubyonrails.org/4_1_release_notes.html#spring-application-preloader

Answer 5

Like @lx00st said:

The reason is that RSpec::Core::CommandLine was removed in Rspec3

The spork gem hasn't been updated in rubygems.org. However, the fix has been merged into spork's master branch on github. You can grab it by telling bundler that you'd like to get spork from github (master) instead of rubygems.org. So do this:

This has been fixed on spork's master branch. Simple solution:

gem 'spork', github: 'sporkrb/spork', branch: 'master'

If you're using spork-rails, just require spork via github before requiring spork-rails in your gemfile. For more info on this, see my comment here:

https://github.com/sporkrb/spork-rails/issues/26

Edit: added branch: 'master'