Spork emergency protection when using a protective spur

Question

I did a "How do I test" screencast in RailsCasts , however I had a problem with spork

$ guard
Guard is now watching at '/Users/darth/projects/auth-before'
Starting Spork for Test::Unit & RSpec 
Couldn't find a supported test framework that begins with 'testunit'

Supported test frameworks:
( ) Cucumber
(*) RSpec

Legend: ( ) - not detected in project   (*) - detected
Using RSpec
Preloading Rails environment
Loading Spork.prefork block...
Spork is ready and listening on 8989!
ERROR: Could not start Spork server for Test::Unit & RSpec. Make sure you can use it manually first.

# here I get growl notification "Test::Unit & RSpec NOT started

Guard::RSpec is running, with RSpec 2!
Running all specs
Running tests with args ["--color", "--format", "progress", "--format", "Guard::RSpec::Formatter::NotificationRSpec", "--out", "/dev/null", "--require", "/Users/darth/.rvm/gems/ruby-1.9.2-p290/gems/guard-rspec-0.5.0/lib/guard/rspec/formatters/notification_rspec.rb", "spec"]...
.

Finished in 14.47 seconds
1 example, 0 failures
Done.

When I try to start sporkin a separate terminal window, this does not help, since it instantly kills after startingguard

$ spork
Using RSpec
Preloading Rails environment
Loading Spork.prefork block...
Spork is ready and listening on 8989!
Killed: 9

If I just run sporkand then try rspec . --drb, it works fine. Here's a link to gist with my Gemfile, Guardfile and spec_helper.rb

Answer 1

guard spork, , MacBook pro.

:wait => 120 Guardfile,

guard 'spork', :cucumber_env => { 'RAILS_ENV' => 'test' }, 
               :rspec_env => { 'RAILS_ENV' => 'test' }, :wait => 120
    ....

Answer 2

:

guard 'spork', :cucumber_env => { 'RAILS_ENV' => 'test' }, 
               :rspec_env => { 'RAILS_ENV' => 'test' }, 
               :wait => 120

guard 'spork', :rspec_env => { 'RAILS_ENV' => 'test' }, 
                cucumber: false, 
                test_unit: false