Use frozen string literals

.rubocop.yml

@@ -136,8 +136,6 @@ Style/EvenOdd:
   Enabled: false
 Style/FormatString:
   Enabled: false
-Style/FrozenStringLiteralComment:
-  Enabled: false
 Style/GlobalVars:
   Enabled: false
 Style/GuardClause:

Appraisals

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Note: All of the dependencies here were obtained by running `rails new` with
 # various versions of Rails and copying lines from the generated Gemfile. It's
 # best to keep the gems here in the same order as they're listed there so you

Gemfile

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 source 'https://rubygems.org'
 
 gem 'appraisal', '2.2.0'

Rakefile

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'bundler/setup'
 require 'bundler/gem_tasks'
 require 'rspec/core/rake_task'

custom_plan.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'zeus'
 require 'zeus/plan'
 require_relative 'spec/support/tests/current_bundle'

doc_config/yard/setup.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 YARD::Templates::Engine.register_template_path(File.dirname(__FILE__) + '/templates')
 
 require 'pygments.rb'

doc_config/yard/templates/default/fulldoc/html/setup.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 def stylesheets_full_list
   %w(css/solarized.css css/bootstrap.css css/global.css) + super
 end

doc_config/yard/templates/default/layout/html/setup.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 def stylesheets
   %w(css/solarized.css css/bootstrap.css css/global.css) + super
 end

gemfiles/rails_4_2.gemfile

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # This file was generated by Appraisal
 
 source "https://rubygems.org"

gemfiles/rails_5_0.gemfile

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # This file was generated by Appraisal
 
 source "https://rubygems.org"

gemfiles/rails_5_1.gemfile

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # This file was generated by Appraisal
 
 source "https://rubygems.org"

gemfiles/rails_5_2.gemfile

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # This file was generated by Appraisal
 
 source "https://rubygems.org"

gemfiles/rails_6_0.gemfile

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # This file was generated by Appraisal
 
 source "https://rubygems.org"

lib/shoulda-matchers.rb

@@ -1 +1,3 @@
+# frozen_string_literal: true
+
 require 'shoulda/matchers'

lib/shoulda/matchers.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'shoulda/matchers/configuration'
 require 'shoulda/matchers/doublespeak'
 require 'shoulda/matchers/error'

lib/shoulda/matchers/action_controller.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'shoulda/matchers/action_controller/filter_param_matcher'
 require 'shoulda/matchers/action_controller/route_params'
 require 'shoulda/matchers/action_controller/set_flash_matcher'

lib/shoulda/matchers/action_controller/callback_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActionController

lib/shoulda/matchers/action_controller/filter_param_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActionController

lib/shoulda/matchers/action_controller/flash_store.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActionController

lib/shoulda/matchers/action_controller/permit_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'delegate'
 
 begin

lib/shoulda/matchers/action_controller/redirect_to_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActionController

lib/shoulda/matchers/action_controller/render_template_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActionController

lib/shoulda/matchers/action_controller/render_with_layout_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActionController

lib/shoulda/matchers/action_controller/rescue_from_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActionController

lib/shoulda/matchers/action_controller/respond_with_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActionController

lib/shoulda/matchers/action_controller/route_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActionController

lib/shoulda/matchers/action_controller/route_params.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActionController

lib/shoulda/matchers/action_controller/session_store.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActionController

lib/shoulda/matchers/action_controller/set_flash_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'forwardable'
 
 module Shoulda

lib/shoulda/matchers/action_controller/set_session_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'forwardable'
 
 module Shoulda

lib/shoulda/matchers/action_controller/set_session_or_flash_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActionController

lib/shoulda/matchers/active_model.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'shoulda/matchers/active_model/helpers'
 require 'shoulda/matchers/active_model/qualifiers'
 require 'shoulda/matchers/active_model/validation_matcher'

lib/shoulda/matchers/active_model/allow_mass_assignment_of_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/allow_value_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/allow_value_matcher/attribute_changed_value_error.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/allow_value_matcher/attribute_does_not_exist_error.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/allow_value_matcher/attribute_setter.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/allow_value_matcher/attribute_setter_and_validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'forwardable'
 
 module Shoulda

lib/shoulda/matchers/active_model/allow_value_matcher/attribute_setters.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/allow_value_matcher/attribute_setters_and_validators.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/allow_value_matcher/successful_check.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/allow_value_matcher/successful_setting.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/disallow_value_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'forwardable'
 
 module Shoulda

lib/shoulda/matchers/active_model/errors.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/have_secure_password_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/helpers.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/numericality_matchers.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/numericality_matchers/comparison_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/numericality_matchers/even_number_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/numericality_matchers/numeric_type_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'forwardable'
 
 module Shoulda

lib/shoulda/matchers/active_model/numericality_matchers/odd_number_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/numericality_matchers/only_integer_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/qualifiers.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/qualifiers/allow_nil.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/qualifiers/ignore_interference_by_writer.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/qualifiers/ignoring_interference_by_writer.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/validate_absence_of_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/validate_acceptance_of_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/validate_confirmation_of_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/validate_exclusion_of_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/validate_inclusion_of_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'bigdecimal'
 require 'date'
 

lib/shoulda/matchers/active_model/validate_length_of_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/validate_numericality_of_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/validate_presence_of_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/validation_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/validation_matcher/build_description.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/validation_message_finder.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_model/validator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_record.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "shoulda/matchers/active_record/association_matcher"
 require "shoulda/matchers/active_record/association_matchers"
 require "shoulda/matchers/active_record/association_matchers/counter_cache_matcher"

lib/shoulda/matchers/active_record/accept_nested_attributes_for_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/active_record/association_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'active_support/core_ext/module/delegation'
 
 module Shoulda

lib/shoulda/matchers/active_record/association_matchers.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/active_record/association_matchers/counter_cache_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/active_record/association_matchers/dependent_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/active_record/association_matchers/inverse_of_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/active_record/association_matchers/join_table_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/active_record/association_matchers/model_reflection.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'delegate'
 
 module Shoulda

lib/shoulda/matchers/active_record/association_matchers/model_reflector.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/active_record/association_matchers/option_verifier.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/active_record/association_matchers/optional_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/active_record/association_matchers/order_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/active_record/association_matchers/required_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/active_record/association_matchers/source_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/active_record/association_matchers/through_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/active_record/define_enum_for_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/active_record/have_db_column_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/active_record/have_db_index_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/active_record/have_readonly_attribute_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/active_record/have_secure_token_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/active_record/serialize_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/active_record/uniqueness.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveModel

lib/shoulda/matchers/active_record/uniqueness/model.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/active_record/uniqueness/namespace.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/active_record/uniqueness/test_model_creator.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'thread'
 
 module Shoulda

lib/shoulda/matchers/active_record/uniqueness/test_models.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'thread'
 
 module Shoulda

lib/shoulda/matchers/active_record/validate_uniqueness_of_matcher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module ActiveRecord

lib/shoulda/matchers/configuration.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     # @private

lib/shoulda/matchers/doublespeak.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'forwardable'
 
 module Shoulda

lib/shoulda/matchers/doublespeak/double.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module Doublespeak

lib/shoulda/matchers/doublespeak/double_collection.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Shoulda
   module Matchers
     module Doublespeak