my guardfile

Guardfile

# require 'guard/plugin'
#
# module ::Guard
#   class BackupifyTest < ::Guard::Plugin
#     def run_all
#     end
#
#     def run_on_changes(paths)
#       paths.each do |path|
#         raise :task_has_failed unless system "ruby -Itest #{path}"
#       end
#     end
#   end
# end

guard :minitest, spring: true, all_on_start: false do
  # Application code
  watch(%r{^app/models/(.+)\.rb$})        { |m| "test/unit/#{m[1]}_test.rb" }
  watch(%r{^lib/(.+)\.rb$})               { |m| "test/unit/#{m[1]}_test.rb" }
  watch(%r{^app/controllers/(.+)\.rb$})   { |m| "test/functionals/#{m[1]}_test.rb" }

  # Test files
  watch(%r{^test/(unit|functionals|integration|script)/(.+)\.rb$})    { |m| "test/#{m[1]}/#{m[2]}.rb" }
end

guard :rubocop, all_on_start: false do
  # Application code
  watch(%r{^app/(.+)\.rb$})   { |m| "app/#{m[1]}.rb" }
  watch(%r{^lib/(.+)\.rb$})   { |m| "lib/#{m[1]}.rb" }
end

guard :flog do
  # Application code
  watch(%r{^app/(.+)\.rb$})   { |m| "app/#{m[1]}.rb" }
  watch(%r{^lib/(.+)\.rb$})   { |m| "lib/#{m[1]}.rb" }
end