Railsでguardを使う。(rspec)
# Gemfile:
group :test do
  gem 'rspec-rails'
  gem 'guard-rspec'
  # for Mac
  gem 'rb-fsevent'
  gem 'growl'
end
$ guard init rspec
$ guard startRailsでguardを使う。(rspec)
# Gemfile:
group :test do
  gem 'rspec-rails'
  gem 'guard-rspec'
  # for Mac
  gem 'rb-fsevent'
  gem 'growl'
end
$ guard init rspec
$ guard start