Fix so we can use guard.

Guardfile

@@ -1,19 +1,9 @@
-# A sample Guardfile
-# More info at https://github.com/guard/guard#readme
-
-guard :rspec, cmd: 'zeus test spec' do
-  watch(%r{^spec/.+_spec\.rb$})
-  watch(%r{^lib/(.+)\.rb$})     { |m| "spec/lib/#{m[1]}_spec.rb" }
-  watch('spec/spec_helper.rb')  { "spec" }
-
-  # Rails example
-  watch(%r{^app/(.+)\.rb$})                           { |m| "spec/#{m[1]}_spec.rb" }
-  watch(%r{^app/(.*)(\.erb|\.haml)$})                 { |m| "spec/#{m[1]}#{m[2]}_spec.rb" }
-  watch(%r{^app/controllers/(.+)_(controller)\.rb$})  { |m| ["spec/routing/#{m[1]}_routing_spec.rb", "spec/#{m[2]}s/#{m[1]}_#{m[2]}_spec.rb", "spec/acceptance/#{m[1]}_spec.rb"] }
-  watch(%r{^spec/support/(.+)\.rb$})                  { "spec" }
-  watch('config/routes.rb')                           { "spec/routing" }
-  watch('app/controllers/application_controller.rb')  { "spec/controllers" }
-  # Capybara request specs
-  watch(%r{^app/views/(.+)/.*\.(erb|haml)$})          { |m| "spec/requests/#{m[1]}_spec.rb" }
+guard 'rspec', cmd: 'bundle exec rspec' do
+  watch('spec/spec_helper.rb')                        { 'spec' }
+  watch('config/routes.rb')                           { 'spec/controllers' }
+  watch('app/controllers/application_controller.rb')  { 'spec/controllers' }
+  watch(%r{^spec/(.+)_spec\.rb$})                     { |m| "spec/#{m[1]}_spec.rb"}
+  watch(%r{^app/(.+)_decorator\.rb$})                 { |m| "spec/#{m[1]}_spec.rb" }
+  watch(%r{^(app|lib)/(.+)(\.rb|\.erb)$})             { |m| "spec/#{m[2]}_spec.rb" }
+  watch(%r{^app/controllers/(.+)_(controller)\.rb$})  { |m| "spec/#{m[2]}s/#{m[1]}_#{m[2]}_spec.rb" }
 end
-

spree_volume_pricing.gemspec

@@ -36,4 +36,5 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'coffee-rails', '~> 4.0.0'
   s.add_development_dependency 'sass-rails', '~> 5.0.0'
   s.add_development_dependency 'rubocop', '>= 0.24.1'
+  s.add_development_dependency 'guard-rspec', '>= 4.2.0'
 end