Working Spork config for RSpec 3

lib-spork-test_framework-rspec.rb

require 'rspec/core/version'

class Spork::TestFramework::RSpec < Spork::TestFramework
  DEFAULT_PORT = 8989
  HELPER_FILE = File.join(Dir.pwd, "spec/spec_helper.rb")

  def run_tests(argv, stderr, stdout)
    if rspec1?
      ::Spec::Runner::CommandLine.run(
        ::Spec::Runner::OptionParser.parse(argv, stderr, stdout)
      )
    elsif rspec3?
      options = ::RSpec::Core::ConfigurationOptions.new(argv)
      ::RSpec::Core::Runner.new(options).run(stderr, stdout)
    else
      ::RSpec::Core::CommandLine.new(argv).run(stderr, stdout)
    end
  end

  def rspec3?
    return false if !defined?(::RSpec::Core::Version::STRING)
    ::RSpec::Core::Version::STRING =~ /^3\./
  end

  def rspec1?
    defined?(Spec) && !defined?(RSpec)
  end
end

Thanks to @CodeCarson: https://github.com/codecarson/spork/blob/38c79dcedb246daacbadb9f18d09f50cc837de51/lib/spork/test_framework/rspec.rb

Creating a Gist for my own reference. File location with rbenv: ~ ▸ .rbenv ▸ versions ▸ 2.1.2 ▸ lib ▸ ruby ▸ gems ▸ 2.1.0 ▸ gems ▸ spork-1.0.0rc4 ▸ lib ▸ spork ▸ test_framework