Guardfile
# More info at https://github.com/guard/guard#readme
guard "minitest" do
watch(%r{^spec/.+_spec\.rb$})
watch(%r{^(.+)/(.+)\.rb$}) { |m| "spec/#{m[1]}/#{m[2]}_spec.rb" }
watch(%r{^(.+)/(.+)/(.+)\.rb$}) { |m| "spec/#{m[3]}_spec.rb" }
watch("spec/spec_helper.rb") { "spec/" }
end