When a controller file is modified, it will execute the associated: - routing spec, - controller spec, - acceptance spec

Guardfile

# When a controller file is modified, it will execute the associated:
#   - routing spec,
#   - controller spec,
#   - acceptance spec
guard 'rspec' do
  watch(%r|app/controllers/(.*)_controller\.rb|) do |m|
    ["spec/routing/#{m[1]}_routing_spec.rb",
     "spec/controllers/#{m[1]}_controller_spec.rb",
     "spec/acceptance/#{m[1]}_spec.rb"]
  end
end