RuboCop is 100% green :tada:

9 files changed, 53 insertions, 44 deletions

diff --git a/actionmailer/lib/action_mailer/preview.rb b/actionmailer/lib/action_mailer/preview.rb
index d88ca7ace4..93a11453bf 100644
--- a/actionmailer/lib/action_mailer/preview.rb
+++ b/actionmailer/lib/action_mailer/preview.rb
@@ -34,11 +34,12 @@ module ActionMailer
       # Either a class or a string can be passed in as the Interceptor. If a
       # string is passed in it will be <tt>constantize</tt>d.
       def register_preview_interceptor(interceptor)
-        preview_interceptor = case interceptor
-                              when String, Symbol
-                                interceptor.to_s.camelize.constantize
+        preview_interceptor = \
+          case interceptor
+          when String, Symbol
+            interceptor.to_s.camelize.constantize
           else
-                                interceptor
+            interceptor
           end
 
         unless preview_interceptors.include?(preview_interceptor)
diff --git a/actionpack/lib/action_controller/metal/implicit_render.rb b/actionpack/lib/action_controller/metal/implicit_render.rb
index e7e32e5108..8615c16c6f 100644
--- a/actionpack/lib/action_controller/metal/implicit_render.rb
+++ b/actionpack/lib/action_controller/metal/implicit_render.rb
@@ -62,7 +62,7 @@ module ActionController
     def method_for_action(action_name)
       super || if template_exists?(action_name.to_s, _prefixes)
                  "default_render"
-      end
+               end
     end
 
     private
diff --git a/actionpack/lib/action_dispatch/routing/route_set.rb b/actionpack/lib/action_dispatch/routing/route_set.rb
index 864ffe3a79..8d0bf680c8 100644
--- a/actionpack/lib/action_dispatch/routing/route_set.rb
+++ b/actionpack/lib/action_dispatch/routing/route_set.rb
@@ -282,16 +282,17 @@ module ActionDispatch
             mod.module_eval do
               define_method(name) do |*args|
                 last = args.last
-                options = case last
-                          when Hash
-                            args.pop
-                          when ActionController::Parameters
-                            if last.permitted?
-                              args.pop.to_h
-                            else
-                              raise ArgumentError, ActionDispatch::Routing::INSECURE_URL_PARAMETERS_MESSAGE
-                            end
-                          end
+                options = \
+                  case last
+                  when Hash
+                    args.pop
+                  when ActionController::Parameters
+                    if last.permitted?
+                      args.pop.to_h
+                    else
+                      raise ArgumentError, ActionDispatch::Routing::INSECURE_URL_PARAMETERS_MESSAGE
+                    end
+                  end
                 helper.call self, args, options
               end
             end
diff --git a/actionview/lib/action_view/helpers/date_helper.rb b/actionview/lib/action_view/helpers/date_helper.rb
index 74c6f0ab1c..c277738920 100644
--- a/actionview/lib/action_view/helpers/date_helper.rb
+++ b/actionview/lib/action_view/helpers/date_helper.rb
@@ -1011,12 +1011,13 @@ module ActionView
         #  css_class_attribute(:year, 'date optional', { year: 'my-year' })
         #  => "date optional my-year"
         def css_class_attribute(type, html_options_class, options) # :nodoc:
-          css_class = case options
-                      when Hash
-                        options[type.to_sym]
-                      else
-                        type
-                      end
+          css_class = \
+            case options
+            when Hash
+              options[type.to_sym]
+            else
+              type
+            end
 
           [html_options_class, css_class].compact.join(" ")
         end
diff --git a/activemodel/lib/active_model/type/helpers/numeric.rb b/activemodel/lib/active_model/type/helpers/numeric.rb
index ec1d1daf1a..eee745cbc4 100644
--- a/activemodel/lib/active_model/type/helpers/numeric.rb
+++ b/activemodel/lib/active_model/type/helpers/numeric.rb
@@ -8,7 +8,7 @@ module ActiveModel
                   when false then 0
                   when ::String then value.presence
                   else value
-                  end
+          end
           super(value)
         end
 
diff --git a/activemodel/lib/active_model/type/immutable_string.rb b/activemodel/lib/active_model/type/immutable_string.rb
index 41e4a2a1ac..75654e1334 100644
--- a/activemodel/lib/active_model/type/immutable_string.rb
+++ b/activemodel/lib/active_model/type/immutable_string.rb
@@ -21,7 +21,7 @@ module ActiveModel
                    when true then "t"
                    when false then "f"
                    else value.to_s
-                   end
+          end
           result.freeze
         end
     end
diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb
index 8c5e4d042e..9b692f55d2 100644
--- a/activerecord/lib/active_record/reflection.rb
+++ b/activerecord/lib/active_record/reflection.rb
@@ -14,18 +14,19 @@ module ActiveRecord
     end
 
     def self.create(macro, name, scope, options, ar)
-      klass = case macro
-              when :composed_of
-                AggregateReflection
-              when :has_many
-                HasManyReflection
-              when :has_one
-                HasOneReflection
-              when :belongs_to
-                BelongsToReflection
-              else
-                raise "Unsupported Macro: #{macro}"
-              end
+      klass = \
+        case macro
+        when :composed_of
+          AggregateReflection
+        when :has_many
+          HasManyReflection
+        when :has_one
+          HasOneReflection
+        when :belongs_to
+          BelongsToReflection
+        else
+          raise "Unsupported Macro: #{macro}"
+        end
 
       reflection = klass.new(name, scope, options, ar)
       options[:through] ? ThroughReflection.new(reflection) : reflection
diff --git a/activesupport/test/core_ext/duration_test.rb b/activesupport/test/core_ext/duration_test.rb
index 1a2dcba760..a881768470 100644
--- a/activesupport/test/core_ext/duration_test.rb
+++ b/activesupport/test/core_ext/duration_test.rb
@@ -208,7 +208,11 @@ class DurationTest < ActiveSupport::TestCase
   end
 
   def test_case_when
-    cased = case 1.day when 1.day then "ok" end
+    cased = \
+      case 1.day
+      when 1.day
+        "ok"
+      end
     assert_equal cased, "ok"
   end
 
diff --git a/guides/rails_guides/markdown/renderer.rb b/guides/rails_guides/markdown/renderer.rb
index 4ff76c519b..f8e32fc498 100644
--- a/guides/rails_guides/markdown/renderer.rb
+++ b/guides/rails_guides/markdown/renderer.rb
@@ -67,14 +67,15 @@ HTML
           # as a list item, but as a paragraph starting with a plain
           # asterisk.
           body.gsub(/^(TIP|IMPORTANT|CAUTION|WARNING|NOTE|INFO|TODO)[.:](.*?)(\n(?=\n)|\Z)/m) do
-            css_class = case $1
-                        when "CAUTION", "IMPORTANT"
-                          "warning"
-                        when "TIP"
-                          "info"
-                        else
-                          $1.downcase
-                        end
+            css_class = \
+              case $1
+              when "CAUTION", "IMPORTANT"
+                "warning"
+              when "TIP"
+                "info"
+              else
+                $1.downcase
+              end
             %(<div class="#{css_class}"><p>#{$2.strip}</p></div>)
           end
         end