Guardfile

# A sample Guardfile
# More info at https://github.com/guard/guard#readme

guard 'spork', :cucumber_env => { 'RAILS_ENV' => 'test' }, :rspec_env => { 'RAILS_ENV' => 'test' } do
  watch('config/application.rb')
  watch('config/environment.rb')
  watch(%r{^config/environments/.+\.rb$})
  watch(%r{^config/initializers/.+\.rb$})
  watch('Gemfile')
  watch('Gemfile.lock')
  watch('spec/spec_helper.rb') { :rspec }
  watch('test/test_helper.rb') { :test_unit }
  watch(%r{features/support/}) { :cucumber }
end

guard 'minitest', :drb => true do
  # with Minitest::Unit
  watch(%r|^test/(.*)\/(.*)_test\.rb|)
  watch(%r|^lib/(.*)([^/]+)\.rb|)     { |m| "test/#{m[1]}test_#{m[2]}.rb" }
  watch(%r|^test/test_helper\.rb|)    { "test" }

  # with Minitest::Spec
  # watch(%r|^spec/(.*)_spec\.rb|)
  # watch(%r|^lib/(.*)([^/]+)\.rb|)     { |m| "spec/#{m[1]}#{m[2]}_spec.rb" }
  # watch(%r|^spec/spec_helper\.rb|)    { "spec" }

  # Rails 3.2
  watch(%r|^app/controllers/(.*)\.rb|) { |m| "test/controllers/#{m[1]}_test.rb" }
  watch(%r|^app/helpers/(.*)\.rb|)     { |m| "test/helpers/#{m[1]}_test.rb" }
  watch(%r|^app/models/(.*)\.rb|)      { |m| "test/unit/#{m[1]}_test.rb" }  
  
  # Rails
  # watch(%r|^app/controllers/(.*)\.rb|) { |m| "test/functional/#{m[1]}_test.rb" }
  # watch(%r|^app/helpers/(.*)\.rb|)     { |m| "test/helpers/#{m[1]}_test.rb" }
  # watch(%r|^app/models/(.*)\.rb|)      { |m| "test/unit/#{m[1]}_test.rb" }  
end