Enable Layout/LeadingCommentSpace to not allow cosmetic changes in the future

Follow up of #31432.

.rubocop.yml

@@ -58,6 +58,9 @@ Layout/IndentationConsistency:
 Layout/IndentationWidth:
   Enabled: true
 
+Layout/LeadingCommentSpace:
+  Enabled: true
+
 Layout/SpaceAfterColon:
   Enabled: true
 

Gemfile

@@ -66,7 +66,7 @@ group :job do
   gem "sneakers", require: false
   gem "que", require: false
   gem "backburner", require: false
-  #TODO: add qu after it support Rails 5.1
+  # TODO: add qu after it support Rails 5.1
   # gem 'qu-rails', github: "bkeepers/qu", branch: "master", require: false
   # gem "qu-redis", require: false
   gem "delayed_job_active_record", require: false

actionpack/lib/action_dispatch/journey/nfa/dot.rb

@@ -9,16 +9,16 @@ module ActionDispatch
             "  #{from} -> #{to} [label=\"#{sym || 'ε'}\"];"
           }
 
-          #memo_nodes = memos.values.flatten.map { |n|
+          # memo_nodes = memos.values.flatten.map { |n|
           #   label = n
           #   if Journey::Route === n
           #     label = "#{n.verb.source} #{n.path.spec}"
           #   end
           #   "  #{n.object_id} [label=\"#{label}\", shape=box];"
-          #}
+          # }
-          #memo_edges = memos.flat_map { |k, memos|
+          # memo_edges = memos.flat_map { |k, memos|
           #   (memos || []).map { |v| "  #{k} -> #{v.object_id};" }
-          #}.uniq
+          # }.uniq
 
           <<-eodot
 digraph nfa {

actionpack/test/controller/url_for_integration_test.rb

@@ -35,7 +35,6 @@ module ActionPack
         as: "blog"
 
       resources :people
-      #match 'legacy/people' => "people#index", :legacy => "true"
 
       get "symbols", controller: :symbols, action: :show, name: :as_symbol
       get "id_default(/:id)" => "foo#id_default", :id => 1

actionpack/test/controller/url_rewriter_test.rb

@@ -19,7 +19,7 @@ class UrlRewriterTests < ActionController::TestCase
 
   def setup
     @params = {}
-    @rewriter = Rewriter.new(@request) #.new(@request, @params)
+    @rewriter = Rewriter.new(@request)
     @routes = ActionDispatch::Routing::RouteSet.new.tap do |r|
       r.draw do
         ActiveSupport::Deprecation.silence do

actionpack/test/dispatch/routing_test.rb

@@ -4225,7 +4225,7 @@ class TestGlobRoutingMapper < ActionDispatch::IntegrationTest
     end
   end
 
-  #include Routes.url_helpers
+  # include Routes.url_helpers
   APP = build_app Routes
   def app; APP end
 

actionpack/test/journey/router_test.rb

@@ -30,7 +30,7 @@ module ActionDispatch
       def test_unicode
         get "/ほげ", to: "foo#bar"
 
-        #match the escaped version of /ほげ
+        # match the escaped version of /ほげ
         env = rails_env "PATH_INFO" => "/%E3%81%BB%E3%81%92"
         called = false
         router.recognize(env) do |r, params|

actionview/test/actionpack/controller/render_test.rb

@@ -9,7 +9,7 @@ class ApplicationController < ActionController::Base
 end
 
 module Quiz
-  #Models
+  # Models
   Question = Struct.new(:name, :id) do
     extend ActiveModel::Naming
     include ActiveModel::Conversion

actionview/test/active_record_unit.rb

@@ -38,7 +38,7 @@ class ActiveRecordTestConnector
       end
     rescue Exception => e  # errors from ActiveRecord setup
       $stderr.puts "\nSkipping ActiveRecord assertion tests: #{e}"
-      #$stderr.puts "  #{e.backtrace.join("\n  ")}\n"
+      # $stderr.puts "  #{e.backtrace.join("\n  ")}\n"
       self.able_to_connect = false
     end
 

actionview/test/template/number_helper_test.rb

@@ -79,7 +79,7 @@ class NumberHelperTest < ActionView::TestCase
     assert_equal "1.23 &lt;b&gt;km3&lt;/b&gt;", number_to_human(1_234_567_000_000, units: volume)
     assert_equal "1.23 &lt;b&gt;Pl&lt;/b&gt;", number_to_human(1_234_567_000_000_000, units: volume)
 
-    #Including fractionals
+    # Including fractionals
     distance = { mili: "<b>mm</b>", centi: "<b>cm</b>", deci: "<b>dm</b>", unit: "<b>m</b>",
                  ten: "<b>dam</b>", hundred: "<b>hm</b>", thousand: "<b>km</b>",
                  micro: "<b>um</b>", nano: "<b>nm</b>", pico: "<b>pm</b>", femto: "<b>fm</b>" }

activejob/Rakefile

@@ -2,7 +2,7 @@
 
 require "rake/testtask"
 
-#TODO: add qu back to the list after it support Rails 5.1
+# TODO: add qu back to the list after it support Rails 5.1
 ACTIVEJOB_ADAPTERS = %w(async inline delayed_job que queue_classic resque sidekiq sneakers sucker_punch backburner test)
 ACTIVEJOB_ADAPTERS.delete("queue_classic") if defined?(JRUBY_VERSION)
 

activejob/test/support/delayed_job/delayed/backend/test.rb

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-#copied from https://github.com/collectiveidea/delayed_job/blob/master/spec/delayed/backend/test.rb
+# copied from https://github.com/collectiveidea/delayed_job/blob/master/spec/delayed/backend/test.rb
 require "ostruct"
 
 # An in-memory backend suitable only for testing. Tries to behave as if it were an ORM.

activerecord/test/cases/associations/eager_test.rb

@@ -1073,7 +1073,7 @@ class EagerAssociationTest < ActiveRecord::TestCase
   end
 
   def test_load_with_sti_sharing_association
-    assert_queries(2) do #should not do 1 query per subclass
+    assert_queries(2) do # should not do 1 query per subclass
       Comment.includes(:post).to_a
     end
   end

activerecord/test/cases/associations/has_one_through_associations_test.rb

@@ -100,7 +100,7 @@ class HasOneThroughAssociationsTest < ActiveRecord::TestCase
   end
 
   def test_has_one_through_eager_loading
-    members = assert_queries(3) do #base table, through table, clubs table
+    members = assert_queries(3) do # base table, through table, clubs table
       Member.all.merge!(includes: :club, where: ["name = ?", "Groucho Marx"]).to_a
     end
     assert_equal 1, members.size
@@ -108,7 +108,7 @@ class HasOneThroughAssociationsTest < ActiveRecord::TestCase
   end
 
   def test_has_one_through_eager_loading_through_polymorphic
-    members = assert_queries(3) do #base table, through table, clubs table
+    members = assert_queries(3) do # base table, through table, clubs table
       Member.all.merge!(includes: :sponsor_club, where: ["name = ?", "Groucho Marx"]).to_a
     end
     assert_equal 1, members.size
@@ -139,7 +139,7 @@ class HasOneThroughAssociationsTest < ActiveRecord::TestCase
 
   def test_has_one_through_nonpreload_eagerloading
     members = assert_queries(1) do
-      Member.all.merge!(includes: :club, where: ["members.name = ?", "Groucho Marx"], order: "clubs.name").to_a #force fallback
+      Member.all.merge!(includes: :club, where: ["members.name = ?", "Groucho Marx"], order: "clubs.name").to_a # force fallback
     end
     assert_equal 1, members.size
     assert_not_nil assert_no_queries { members[0].club }
@@ -147,7 +147,7 @@ class HasOneThroughAssociationsTest < ActiveRecord::TestCase
 
   def test_has_one_through_nonpreload_eager_loading_through_polymorphic
     members = assert_queries(1) do
-      Member.all.merge!(includes: :sponsor_club, where: ["members.name = ?", "Groucho Marx"], order: "clubs.name").to_a #force fallback
+      Member.all.merge!(includes: :sponsor_club, where: ["members.name = ?", "Groucho Marx"], order: "clubs.name").to_a # force fallback
     end
     assert_equal 1, members.size
     assert_not_nil assert_no_queries { members[0].sponsor_club }
@@ -156,7 +156,7 @@ class HasOneThroughAssociationsTest < ActiveRecord::TestCase
   def test_has_one_through_nonpreload_eager_loading_through_polymorphic_with_more_than_one_through_record
     Sponsor.new(sponsor_club: clubs(:crazy_club), sponsorable: members(:groucho)).save!
     members = assert_queries(1) do
-      Member.all.merge!(includes: :sponsor_club, where: ["members.name = ?", "Groucho Marx"], order: "clubs.name DESC").to_a #force fallback
+      Member.all.merge!(includes: :sponsor_club, where: ["members.name = ?", "Groucho Marx"], order: "clubs.name DESC").to_a # force fallback
     end
     assert_equal 1, members.size
     assert_not_nil assert_no_queries { members[0].sponsor_club }

activerecord/test/cases/associations/join_model_test.rb

@@ -467,7 +467,7 @@ class AssociationsJoinModelTest < ActiveRecord::TestCase
     new_tag = Tag.new(name: "new")
 
     saved_post.tags << new_tag
-    assert new_tag.persisted? #consistent with habtm!
+    assert new_tag.persisted? # consistent with habtm!
     assert saved_post.persisted?
     assert_includes saved_post.tags, new_tag
 

activerecord/test/cases/dup_test.rb

@@ -62,10 +62,10 @@ module ActiveRecord
 
       topic.attributes = dbtopic.attributes.except("id")
 
-      #duped has no timestamp values
+      # duped has no timestamp values
       duped = dbtopic.dup
 
-      #clear topic timestamp values
+      # clear topic timestamp values
       topic.send(:clear_timestamp_attributes)
 
       assert_equal topic.changes, duped.changes
@@ -100,7 +100,7 @@ module ActiveRecord
       # temporary change to the topic object
       topic.updated_at -= 3.days
 
-      #dup should not preserve the timestamps if present
+      # dup should not preserve the timestamps if present
       new_topic = topic.dup
       assert_nil new_topic.updated_at
       assert_nil new_topic.created_at

activerecord/test/cases/finder_test.rb

@@ -565,7 +565,7 @@ class FinderTest < ActiveRecord::TestCase
     assert_nil Topic.offset(4).second_to_last
     assert_nil Topic.offset(5).second_to_last
 
-    #test with limit
+    # test with limit
     assert_nil Topic.limit(1).second
     assert_nil Topic.limit(1).second_to_last
   end

activerecord/test/cases/fixtures_test.rb

@@ -247,7 +247,7 @@ class FixturesTest < ActiveRecord::TestCase
   def test_nonexistent_fixture_file
     nonexistent_fixture_path = FIXTURES_ROOT + "/imnothere"
 
-    #sanity check to make sure that this file never exists
+    # sanity check to make sure that this file never exists
     assert Dir[nonexistent_fixture_path + "*"].empty?
 
     assert_raise(Errno::ENOENT) do

activerecord/test/cases/statement_cache_test.rb

@@ -12,7 +12,6 @@ module ActiveRecord
       @connection = ActiveRecord::Base.connection
     end
 
-    #Cache v 1.1 tests
     def test_statement_cache
       Book.create(name: "my book")
       Book.create(name: "my other book")
@@ -51,8 +50,6 @@ module ActiveRecord
       assert_equal("my other book", b.name)
     end
 
-    #End
-
     def test_statement_cache_with_simple_statement
       cache = ActiveRecord::StatementCache.create(Book.connection) do |params|
         Book.where(name: "my book").where("author_id > 3")

activestorage/test/dummy/config/application.rb

@@ -10,10 +10,6 @@ require "action_controller/railtie"
 require "action_view/railtie"
 require "sprockets/railtie"
 require "active_storage/engine"
-#require "action_mailer/railtie"
-#require "rails/test_unit/railtie"
-#require "action_cable/engine"
-
 
 Bundler.require(*Rails.groups)
 

activesupport/test/cache/stores/redis_cache_store_test.rb

@@ -88,7 +88,7 @@ module ActiveSupport::Cache::RedisCacheStoreTests
       @namespace = "namespace"
 
       @cache = ActiveSupport::Cache::RedisCacheStore.new(timeout: 0.1, namespace: @namespace, expires_in: 60)
-      #@cache.logger = Logger.new($stdout)  # For test debugging
+      # @cache.logger = Logger.new($stdout)  # For test debugging
 
       # For LocalCacheBehavior tests
       @peek = ActiveSupport::Cache::RedisCacheStore.new(timeout: 0.1, namespace: @namespace)

activesupport/test/core_ext/date_and_time_behavior.rb

@@ -297,24 +297,24 @@ module DateAndTimeBehavior
 
   def test_beginning_of_week
     assert_equal date_time_init(2005, 1, 31, 0, 0, 0),  date_time_init(2005, 2, 4, 10, 10, 10).beginning_of_week
-    assert_equal date_time_init(2005, 11, 28, 0, 0, 0), date_time_init(2005, 11, 28, 0, 0, 0).beginning_of_week #monday
+    assert_equal date_time_init(2005, 11, 28, 0, 0, 0), date_time_init(2005, 11, 28, 0, 0, 0).beginning_of_week # monday
-    assert_equal date_time_init(2005, 11, 28, 0, 0, 0), date_time_init(2005, 11, 29, 0, 0, 0).beginning_of_week #tuesday
+    assert_equal date_time_init(2005, 11, 28, 0, 0, 0), date_time_init(2005, 11, 29, 0, 0, 0).beginning_of_week # tuesday
-    assert_equal date_time_init(2005, 11, 28, 0, 0, 0), date_time_init(2005, 11, 30, 0, 0, 0).beginning_of_week #wednesday
+    assert_equal date_time_init(2005, 11, 28, 0, 0, 0), date_time_init(2005, 11, 30, 0, 0, 0).beginning_of_week # wednesday
-    assert_equal date_time_init(2005, 11, 28, 0, 0, 0), date_time_init(2005, 12, 01, 0, 0, 0).beginning_of_week #thursday
+    assert_equal date_time_init(2005, 11, 28, 0, 0, 0), date_time_init(2005, 12, 01, 0, 0, 0).beginning_of_week # thursday
-    assert_equal date_time_init(2005, 11, 28, 0, 0, 0), date_time_init(2005, 12, 02, 0, 0, 0).beginning_of_week #friday
+    assert_equal date_time_init(2005, 11, 28, 0, 0, 0), date_time_init(2005, 12, 02, 0, 0, 0).beginning_of_week # friday
-    assert_equal date_time_init(2005, 11, 28, 0, 0, 0), date_time_init(2005, 12, 03, 0, 0, 0).beginning_of_week #saturday
+    assert_equal date_time_init(2005, 11, 28, 0, 0, 0), date_time_init(2005, 12, 03, 0, 0, 0).beginning_of_week # saturday
-    assert_equal date_time_init(2005, 11, 28, 0, 0, 0), date_time_init(2005, 12, 04, 0, 0, 0).beginning_of_week #sunday
+    assert_equal date_time_init(2005, 11, 28, 0, 0, 0), date_time_init(2005, 12, 04, 0, 0, 0).beginning_of_week # sunday
   end
 
   def test_end_of_week
     assert_equal date_time_init(2008, 1, 6, 23, 59, 59, Rational(999999999, 1000)), date_time_init(2007, 12, 31, 10, 10, 10).end_of_week
-    assert_equal date_time_init(2007, 9, 2, 23, 59, 59, Rational(999999999, 1000)), date_time_init(2007, 8, 27, 0, 0, 0).end_of_week #monday
+    assert_equal date_time_init(2007, 9, 2, 23, 59, 59, Rational(999999999, 1000)), date_time_init(2007, 8, 27, 0, 0, 0).end_of_week # monday
-    assert_equal date_time_init(2007, 9, 2, 23, 59, 59, Rational(999999999, 1000)), date_time_init(2007, 8, 28, 0, 0, 0).end_of_week #tuesday
+    assert_equal date_time_init(2007, 9, 2, 23, 59, 59, Rational(999999999, 1000)), date_time_init(2007, 8, 28, 0, 0, 0).end_of_week # tuesday
-    assert_equal date_time_init(2007, 9, 2, 23, 59, 59, Rational(999999999, 1000)), date_time_init(2007, 8, 29, 0, 0, 0).end_of_week #wednesday
+    assert_equal date_time_init(2007, 9, 2, 23, 59, 59, Rational(999999999, 1000)), date_time_init(2007, 8, 29, 0, 0, 0).end_of_week # wednesday
-    assert_equal date_time_init(2007, 9, 2, 23, 59, 59, Rational(999999999, 1000)), date_time_init(2007, 8, 30, 0, 0, 0).end_of_week #thursday
+    assert_equal date_time_init(2007, 9, 2, 23, 59, 59, Rational(999999999, 1000)), date_time_init(2007, 8, 30, 0, 0, 0).end_of_week # thursday
-    assert_equal date_time_init(2007, 9, 2, 23, 59, 59, Rational(999999999, 1000)), date_time_init(2007, 8, 31, 0, 0, 0).end_of_week #friday
+    assert_equal date_time_init(2007, 9, 2, 23, 59, 59, Rational(999999999, 1000)), date_time_init(2007, 8, 31, 0, 0, 0).end_of_week # friday
-    assert_equal date_time_init(2007, 9, 2, 23, 59, 59, Rational(999999999, 1000)), date_time_init(2007, 9, 01, 0, 0, 0).end_of_week #saturday
+    assert_equal date_time_init(2007, 9, 2, 23, 59, 59, Rational(999999999, 1000)), date_time_init(2007, 9, 01, 0, 0, 0).end_of_week # saturday
-    assert_equal date_time_init(2007, 9, 2, 23, 59, 59, Rational(999999999, 1000)), date_time_init(2007, 9, 02, 0, 0, 0).end_of_week #sunday
+    assert_equal date_time_init(2007, 9, 2, 23, 59, 59, Rational(999999999, 1000)), date_time_init(2007, 9, 02, 0, 0, 0).end_of_week # sunday
   end
 
   def test_end_of_month

activesupport/test/core_ext/date_ext_test.rb

@@ -95,11 +95,11 @@ class DateExtCalculationsTest < ActiveSupport::TestCase
   end
 
   def test_beginning_of_week_in_calendar_reform
-    assert_equal Date.new(1582, 10, 1), Date.new(1582, 10, 15).beginning_of_week #friday
+    assert_equal Date.new(1582, 10, 1), Date.new(1582, 10, 15).beginning_of_week # friday
   end
 
   def test_end_of_week_in_calendar_reform
-    assert_equal Date.new(1582, 10, 17), Date.new(1582, 10, 4).end_of_week #thursday
+    assert_equal Date.new(1582, 10, 17), Date.new(1582, 10, 4).end_of_week # thursday
   end
 
   def test_end_of_year
@@ -144,7 +144,7 @@ class DateExtCalculationsTest < ActiveSupport::TestCase
     assert_equal Date.new(2012, 9, 28), Date.new(2005, 2, 28).advance(years: 7, months: 7)
     assert_equal Date.new(2013, 10, 3), Date.new(2005, 2, 28).advance(years: 7, months: 19, days: 5)
     assert_equal Date.new(2013, 10, 17), Date.new(2005, 2, 28).advance(years: 7, months: 19, weeks: 2, days: 5)
-    assert_equal Date.new(2005, 2, 28), Date.new(2004, 2, 29).advance(years: 1) #leap day plus one year
+    assert_equal Date.new(2005, 2, 28), Date.new(2004, 2, 29).advance(years: 1) # leap day plus one year
   end
 
   def test_advance_does_first_years_and_then_days

activesupport/test/core_ext/date_time_ext_test.rb

@@ -187,7 +187,7 @@ class DateTimeExtCalculationsTest < ActiveSupport::TestCase
     assert_equal DateTime.civil(2013, 10, 3, 15, 15, 10),  DateTime.civil(2005, 2, 28, 15, 15, 10).advance(years: 7, months: 19, days: 5)
     assert_equal DateTime.civil(2013, 10, 17, 15, 15, 10), DateTime.civil(2005, 2, 28, 15, 15, 10).advance(years: 7, months: 19, weeks: 2, days: 5)
     assert_equal DateTime.civil(2001, 12, 27, 15, 15, 10), DateTime.civil(2005, 2, 28, 15, 15, 10).advance(years: -3, months: -2, days: -1)
-    assert_equal DateTime.civil(2005, 2, 28, 15, 15, 10),  DateTime.civil(2004, 2, 29, 15, 15, 10).advance(years: 1) #leap day plus one year
+    assert_equal DateTime.civil(2005, 2, 28, 15, 15, 10),  DateTime.civil(2004, 2, 29, 15, 15, 10).advance(years: 1) # leap day plus one year
     assert_equal DateTime.civil(2005, 2, 28, 20, 15, 10),  DateTime.civil(2005, 2, 28, 15, 15, 10).advance(hours: 5)
     assert_equal DateTime.civil(2005, 2, 28, 15, 22, 10),  DateTime.civil(2005, 2, 28, 15, 15, 10).advance(minutes: 7)
     assert_equal DateTime.civil(2005, 2, 28, 15, 15, 19),  DateTime.civil(2005, 2, 28, 15, 15, 10).advance(seconds: 9)

activesupport/test/core_ext/numeric_ext_test.rb

@@ -302,7 +302,7 @@ class NumericExtFormattingTest < ActiveSupport::TestCase
     assert_equal "40 KB",    41100.to_s(:human_size, precision: 2)
     assert_equal "1.0 KB",   kilobytes(1.0123).to_s(:human_size, precision: 2, strip_insignificant_zeros: false)
     assert_equal "1.012 KB", kilobytes(1.0123).to_s(:human_size, precision: 3, significant: false)
-    assert_equal "1 KB",     kilobytes(1.0123).to_s(:human_size, precision: 0, significant: true) #ignores significant it precision is 0
+    assert_equal "1 KB",     kilobytes(1.0123).to_s(:human_size, precision: 0, significant: true) # ignores significant it precision is 0
   end
 
   def test_to_s__human_size_with_custom_delimiter_and_separator
@@ -330,17 +330,17 @@ class NumericExtFormattingTest < ActiveSupport::TestCase
     assert_equal "489.0 Thousand", 489000.to_s(:human, precision: 4, strip_insignificant_zeros: false)
     assert_equal "1.2346 Million", 1234567.to_s(:human, precision: 4, significant: false)
     assert_equal "1,2 Million", 1234567.to_s(:human, precision: 1, significant: false, separator: ",")
-    assert_equal "1 Million", 1234567.to_s(:human, precision: 0, significant: true, separator: ",") #significant forced to false
+    assert_equal "1 Million", 1234567.to_s(:human, precision: 0, significant: true, separator: ",") # significant forced to false
   end
 
   def test_number_to_human_with_custom_units
-    #Only integers
+    # Only integers
     volume = { unit: "ml", thousand: "lt", million: "m3" }
     assert_equal "123 lt", 123456.to_s(:human, units: volume)
     assert_equal "12 ml", 12.to_s(:human, units: volume)
     assert_equal "1.23 m3", 1234567.to_s(:human, units: volume)
 
-    #Including fractionals
+    # Including fractionals
     distance = { mili: "mm", centi: "cm", deci: "dm", unit: "m", ten: "dam", hundred: "hm", thousand: "km" }
     assert_equal "1.23 mm", 0.00123.to_s(:human, units: distance)
     assert_equal "1.23 cm", 0.0123.to_s(:human, units: distance)
@@ -353,14 +353,14 @@ class NumericExtFormattingTest < ActiveSupport::TestCase
     assert_equal "1.23 km", 1230.to_s(:human, units: distance)
     assert_equal "12.3 km", 12300.to_s(:human, units: distance)
 
-    #The quantifiers don't need to be a continuous sequence
+    # The quantifiers don't need to be a continuous sequence
     gangster = { hundred: "hundred bucks", million: "thousand quids" }
     assert_equal "1 hundred bucks", 100.to_s(:human, units: gangster)
     assert_equal "25 hundred bucks", 2500.to_s(:human, units: gangster)
     assert_equal "25 thousand quids", 25000000.to_s(:human, units: gangster)
     assert_equal "12300 thousand quids", 12345000000.to_s(:human, units: gangster)
 
-    #Spaces are stripped from the resulting string
+    # Spaces are stripped from the resulting string
     assert_equal "4", 4.to_s(:human, units: { unit: "", ten: "tens " })
     assert_equal "4.5  tens", 45.to_s(:human, units: { unit: "", ten: " tens   " })
   end

activesupport/test/core_ext/time_ext_test.rb

@@ -451,7 +451,7 @@ class TimeExtCalculationsTest < ActiveSupport::TestCase
     assert_equal Time.local(2013, 10, 3, 15, 15, 10), Time.local(2005, 2, 28, 15, 15, 10).advance(years: 7, months: 19, days: 5)
     assert_equal Time.local(2013, 10, 17, 15, 15, 10), Time.local(2005, 2, 28, 15, 15, 10).advance(years: 7, months: 19, weeks: 2, days: 5)
     assert_equal Time.local(2001, 12, 27, 15, 15, 10), Time.local(2005, 2, 28, 15, 15, 10).advance(years: -3, months: -2, days: -1)
-    assert_equal Time.local(2005, 2, 28, 15, 15, 10), Time.local(2004, 2, 29, 15, 15, 10).advance(years: 1) #leap day plus one year
+    assert_equal Time.local(2005, 2, 28, 15, 15, 10), Time.local(2004, 2, 29, 15, 15, 10).advance(years: 1) # leap day plus one year
     assert_equal Time.local(2005, 2, 28, 20, 15, 10), Time.local(2005, 2, 28, 15, 15, 10).advance(hours: 5)
     assert_equal Time.local(2005, 2, 28, 15, 22, 10), Time.local(2005, 2, 28, 15, 15, 10).advance(minutes: 7)
     assert_equal Time.local(2005, 2, 28, 15, 15, 19), Time.local(2005, 2, 28, 15, 15, 10).advance(seconds: 9)
@@ -473,7 +473,7 @@ class TimeExtCalculationsTest < ActiveSupport::TestCase
     assert_equal Time.utc(2013, 10, 3, 15, 15, 10), Time.utc(2005, 2, 22, 15, 15, 10).advance(years: 7, months: 19, days: 11)
     assert_equal Time.utc(2013, 10, 17, 15, 15, 10), Time.utc(2005, 2, 28, 15, 15, 10).advance(years: 7, months: 19, weeks: 2, days: 5)
     assert_equal Time.utc(2001, 12, 27, 15, 15, 10), Time.utc(2005, 2, 28, 15, 15, 10).advance(years: -3, months: -2, days: -1)
-    assert_equal Time.utc(2005, 2, 28, 15, 15, 10), Time.utc(2004, 2, 29, 15, 15, 10).advance(years: 1) #leap day plus one year
+    assert_equal Time.utc(2005, 2, 28, 15, 15, 10), Time.utc(2004, 2, 29, 15, 15, 10).advance(years: 1) # leap day plus one year
     assert_equal Time.utc(2005, 2, 28, 20, 15, 10), Time.utc(2005, 2, 28, 15, 15, 10).advance(hours: 5)
     assert_equal Time.utc(2005, 2, 28, 15, 22, 10), Time.utc(2005, 2, 28, 15, 15, 10).advance(minutes: 7)
     assert_equal Time.utc(2005, 2, 28, 15, 15, 19), Time.utc(2005, 2, 28, 15, 15, 10).advance(seconds: 9)
@@ -495,7 +495,7 @@ class TimeExtCalculationsTest < ActiveSupport::TestCase
     assert_equal Time.new(2013, 10, 3, 15, 15, 10, "-08:00"), Time.new(2005, 2, 22, 15, 15, 10, "-08:00").advance(years: 7, months: 19, days: 11)
     assert_equal Time.new(2013, 10, 17, 15, 15, 10, "-08:00"), Time.new(2005, 2, 28, 15, 15, 10, "-08:00").advance(years: 7, months: 19, weeks: 2, days: 5)
     assert_equal Time.new(2001, 12, 27, 15, 15, 10, "-08:00"), Time.new(2005, 2, 28, 15, 15, 10, "-08:00").advance(years: -3, months: -2, days: -1)
-    assert_equal Time.new(2005, 2, 28, 15, 15, 10, "-08:00"), Time.new(2004, 2, 29, 15, 15, 10, "-08:00").advance(years: 1) #leap day plus one year
+    assert_equal Time.new(2005, 2, 28, 15, 15, 10, "-08:00"), Time.new(2004, 2, 29, 15, 15, 10, "-08:00").advance(years: 1) # leap day plus one year
     assert_equal Time.new(2005, 2, 28, 20, 15, 10, "-08:00"), Time.new(2005, 2, 28, 15, 15, 10, "-08:00").advance(hours: 5)
     assert_equal Time.new(2005, 2, 28, 15, 22, 10, "-08:00"), Time.new(2005, 2, 28, 15, 15, 10, "-08:00").advance(minutes: 7)
     assert_equal Time.new(2005, 2, 28, 15, 15, 19, "-08:00"), Time.new(2005, 2, 28, 15, 15, 10, "-08:00").advance(seconds: 9)

activesupport/test/core_ext/time_with_zone_test.rb

@@ -84,7 +84,7 @@ class TimeWithZoneTest < ActiveSupport::TestCase
 
   def test_formatted_offset
     assert_equal "-05:00", @twz.formatted_offset
-    assert_equal "-04:00", ActiveSupport::TimeWithZone.new(Time.utc(2000, 6), @time_zone).formatted_offset #dst
+    assert_equal "-04:00", ActiveSupport::TimeWithZone.new(Time.utc(2000, 6), @time_zone).formatted_offset # dst
   end
 
   def test_dst?
@@ -94,7 +94,7 @@ class TimeWithZoneTest < ActiveSupport::TestCase
 
   def test_zone
     assert_equal "EST", @twz.zone
-    assert_equal "EDT", ActiveSupport::TimeWithZone.new(Time.utc(2000, 6), @time_zone).zone #dst
+    assert_equal "EDT", ActiveSupport::TimeWithZone.new(Time.utc(2000, 6), @time_zone).zone # dst
   end
 
   def test_nsec

activesupport/test/number_helper_i18n_test.rb

@@ -77,10 +77,10 @@ module ActiveSupport
     end
 
     def test_number_with_i18n_precision
-      #Delimiter was set to ""
+      # Delimiter was set to ""
       assert_equal("10000", number_to_rounded(10000, locale: "ts"))
 
-      #Precision inherited and significant was set
+      # Precision inherited and significant was set
       assert_equal("1.00", number_to_rounded(1.0, locale: "ts"))
     end
 
@@ -90,7 +90,7 @@ module ActiveSupport
     end
 
     def test_number_with_i18n_delimiter
-      #Delimiter "," and separator "."
+      # Delimiter "," and separator "."
       assert_equal("1,000,000.234", number_to_delimited(1000000.234, locale: "ts"))
     end
 
@@ -114,7 +114,7 @@ module ActiveSupport
     end
 
     def test_number_to_i18n_human_size
-      #b for bytes and k for kbytes
+      # b for bytes and k for kbytes
       assert_equal("2 k", number_to_human_size(2048, locale: "ts"))
       assert_equal("42 b", number_to_human_size(42, locale: "ts"))
     end
@@ -125,11 +125,11 @@ module ActiveSupport
     end
 
     def test_number_to_human_with_default_translation_scope
-      #Using t for thousand
+      # Using t for thousand
       assert_equal "2 t", number_to_human(2000, locale: "ts")
-      #Significant was set to true with precision 2, using b for billion
+      # Significant was set to true with precision 2, using b for billion
       assert_equal "1.2 b", number_to_human(1234567890, locale: "ts")
-      #Using pluralization (Ten/Tens and Tenth/Tenths)
+      # Using pluralization (Ten/Tens and Tenth/Tenths)
       assert_equal "1 Tenth", number_to_human(0.1, locale: "ts")
       assert_equal "1.3 Tenth", number_to_human(0.134, locale: "ts")
       assert_equal "2 Tenths", number_to_human(0.2, locale: "ts")
@@ -144,7 +144,7 @@ module ActiveSupport
     end
 
     def test_number_to_human_with_custom_translation_scope
-      #Significant was set to true with precision 2, with custom translated units
+      # Significant was set to true with precision 2, with custom translated units
       assert_equal "4.3 cm", number_to_human(0.0432, locale: "ts", units: :custom_units_for_number_to_human)
     end
   end

activesupport/test/number_helper_test.rb

@@ -260,7 +260,7 @@ module ActiveSupport
           assert_equal "40 KB", number_helper.number_to_human_size(41100, precision: 2)
           assert_equal "1.0 KB",   number_helper.number_to_human_size(kilobytes(1.0123), precision: 2, strip_insignificant_zeros: false)
           assert_equal "1.012 KB",   number_helper.number_to_human_size(kilobytes(1.0123), precision: 3, significant: false)
-          assert_equal "1 KB",   number_helper.number_to_human_size(kilobytes(1.0123), precision: 0, significant: true) #ignores significant it precision is 0
+          assert_equal "1 KB",   number_helper.number_to_human_size(kilobytes(1.0123), precision: 0, significant: true) # ignores significant it precision is 0
         end
       end
 
@@ -292,7 +292,7 @@ module ActiveSupport
           assert_equal "489.0 Thousand", number_helper.number_to_human(489000, precision: 4, strip_insignificant_zeros: false)
           assert_equal "1.2346 Million", number_helper.number_to_human(1234567, precision: 4, significant: false)
           assert_equal "1,2 Million", number_helper.number_to_human(1234567, precision: 1, significant: false, separator: ",")
-          assert_equal "1 Million", number_helper.number_to_human(1234567, precision: 0, significant: true, separator: ",") #significant forced to false
+          assert_equal "1 Million", number_helper.number_to_human(1234567, precision: 0, significant: true, separator: ",") # significant forced to false
           assert_equal "1 Million", number_helper.number_to_human(999999)
           assert_equal "1 Billion", number_helper.number_to_human(999999999)
         end
@@ -300,13 +300,13 @@ module ActiveSupport
 
       def test_number_to_human_with_custom_units
         [@instance_with_helpers, TestClassWithClassNumberHelpers, ActiveSupport::NumberHelper].each do |number_helper|
-          #Only integers
+          # Only integers
           volume = { unit: "ml", thousand: "lt", million: "m3" }
           assert_equal "123 lt", number_helper.number_to_human(123456, units: volume)
           assert_equal "12 ml", number_helper.number_to_human(12, units: volume)
           assert_equal "1.23 m3", number_helper.number_to_human(1234567, units: volume)
 
-          #Including fractionals
+          # Including fractionals
           distance = { mili: "mm", centi: "cm", deci: "dm", unit: "m", ten: "dam", hundred: "hm", thousand: "km" }
           assert_equal "1.23 mm", number_helper.number_to_human(0.00123, units: distance)
           assert_equal "1.23 cm", number_helper.number_to_human(0.0123, units: distance)
@@ -319,7 +319,7 @@ module ActiveSupport
           assert_equal "1.23 km", number_helper.number_to_human(1230, units: distance)
           assert_equal "12.3 km", number_helper.number_to_human(12300, units: distance)
 
-          #The quantifiers don't need to be a continuous sequence
+          # The quantifiers don't need to be a continuous sequence
           gangster = { hundred: "hundred bucks", million: "thousand quids" }
           assert_equal "1 hundred bucks", number_helper.number_to_human(100, units: gangster)
           assert_equal "25 hundred bucks", number_helper.number_to_human(2500, units: gangster)
@@ -329,11 +329,11 @@ module ActiveSupport
           assert_equal "25 thousand quids", number_helper.number_to_human(25000000, units: gangster)
           assert_equal "12300 thousand quids", number_helper.number_to_human(12345000000, units: gangster)
 
-          #Spaces are stripped from the resulting string
+          # Spaces are stripped from the resulting string
           assert_equal "4", number_helper.number_to_human(4, units: { unit: "", ten: "tens " })
           assert_equal "4.5  tens", number_helper.number_to_human(45, units: { unit: "", ten: " tens   " })
 
-          #Uses only the provided units and does not try to use larger ones
+          # Uses only the provided units and does not try to use larger ones
           assert_equal "1000 kilometers", number_helper.number_to_human(1_000_000, units: { unit: "meter", thousand: "kilometers" })
         end
       end

activesupport/test/time_travel_test.rb

@@ -98,7 +98,7 @@ class TimeTravelTest < ActiveSupport::TestCase
       travel_to outer_expected_time do
         e = assert_raises(RuntimeError) do
           travel_to(inner_expected_time) do
-            #noop
+            # noop
           end
         end
         assert_match(/Calling `travel_to` with a block, when we have previously already made a call to `travel_to`, can lead to confusing time stubbing\./, e.message)

activesupport/test/xml_mini/libxml_engine_test.rb

@@ -6,7 +6,7 @@ XMLMiniEngineTest.run_with_gem("libxml") do
   class LibxmlEngineTest < XMLMiniEngineTest
     def setup
       super
-      LibXML::XML::Error.set_handler(&lambda { |error| }) #silence libxml, exceptions will do
+      LibXML::XML::Error.set_handler(&lambda { |error| }) # silence libxml, exceptions will do
     end
 
     private

railties/test/application/rake/dbs_test.rb

@@ -203,7 +203,7 @@ module ApplicationTests
           rails "environment", "db:drop", "db:structure:load"
           assert_match expected_database, ActiveRecord::Base.connection_config[:database]
           require "#{app_path}/app/models/book"
-          #if structure is not loaded correctly, exception would be raised
+          # if structure is not loaded correctly, exception would be raised
           assert_equal 0, Book.count
         end
       end
@@ -298,7 +298,7 @@ module ApplicationTests
           ActiveRecord::Base.configurations = Rails.application.config.database_configuration
           ActiveRecord::Base.establish_connection :test
           require "#{app_path}/app/models/book"
-          #if structure is not loaded correctly, exception would be raised
+          # if structure is not loaded correctly, exception would be raised
           assert_equal 0, Book.count
           assert_match ActiveRecord::Base.configurations["test"]["database"],
             ActiveRecord::Base.connection_config[:database]