re: RuboCop: Bulk minor style corrections

.rubocop_todo.yml

@@ -11,21 +11,6 @@ Lint/HandleExceptions:
   Exclude:
     - 'Rakefile'
 
-# Offense count: 2
-# Cop supports --auto-correct.
-# Configuration parameters: AllowUnusedKeywordArguments, IgnoreEmptyMethods.
-Lint/UnusedMethodArgument:
-  Exclude:
-    - 'test/lint_test.rb'
-
-# Offense count: 4
-# Configuration parameters: EnforcedStyle, SupportedStyles.
-# SupportedStyles: strict, flexible
-Rails/TimeZone:
-  Exclude:
-    - 'test/action_controller/serialization_test.rb'
-    - 'test/serializers/cache_test.rb'
-
 # Offense count: 16
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedHashRocketStyle, EnforcedColonStyle, EnforcedLastArgumentHashStyle, SupportedLastArgumentHashStyles.
@@ -58,22 +43,7 @@ Style/BracesAroundHashParameters:
 Style/ClassAndModuleChildren:
   Enabled: false
 
-# Offense count: 6
-# Cop supports --auto-correct.
-Style/CommentIndentation:
-  Exclude:
-    - 'active_model_serializers.gemspec'
 
-# Offense count: 1
-Style/DoubleNegation:
-  Exclude:
-    - 'lib/active_model/serializable_resource.rb'
-
-# Offense count: 1
-# Configuration parameters: MinBodyLength.
-Style/GuardClause:
-  Exclude:
-    - 'lib/active_model/serializer.rb'
 
 # Offense count: 58
 # Cop supports --auto-correct.
@@ -82,51 +52,6 @@ Style/GuardClause:
 Style/HashSyntax:
   Enabled: false
 
-# Offense count: 4
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle, SupportedStyles, IndentationWidth.
-# SupportedStyles: special_inside_parentheses, consistent, align_brackets
-Style/IndentArray:
-  Enabled: false
-
-# Offense count: 10
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle, SupportedStyles, IndentationWidth.
-# SupportedStyles: special_inside_parentheses, consistent, align_braces
-Style/IndentHash:
-  Enabled: false
-
-# Offense count: 1
-# Cop supports --auto-correct.
-Style/Lambda:
-  Exclude:
-    - 'lib/active_model/serializer.rb'
-
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle, SupportedStyles.
-# SupportedStyles: require_parentheses, require_no_parentheses, require_no_parentheses_except_multiline
-Style/MethodDefParentheses:
-  Enabled: false
-
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle, SupportedStyles, IndentationWidth.
-# SupportedStyles: aligned, indented
-Style/MultilineOperationIndentation:
-  Enabled: false
-
-# Offense count: 1
-# Cop supports --auto-correct.
-Style/NegatedIf:
-  Exclude:
-    - 'lib/action_controller/serialization.rb'
-
-# Offense count: 1
-# Cop supports --auto-correct.
-Style/PerlBackrefs:
-  Exclude:
-    - 'test/fixtures/poro.rb'
 
 # Offense count: 3
 # Configuration parameters: NamePrefix, NamePrefixBlacklist, NameWhitelist.
@@ -138,30 +63,4 @@ Style/PredicateName:
     - 'lib/active_model/serializer/associations.rb'
     - 'test/action_controller/json_api/linked_test.rb'
 
-# Offense count: 1
-# Cop supports --auto-correct.
-Style/RedundantSelf:
-  Exclude:
-    - 'test/fixtures/poro.rb'
 
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: AllowIfMethodIsEmpty.
-Style/SingleLineMethods:
-  Exclude:
-    - 'test/serializers/serializer_for_test.rb'
-
-# Offense count: 4
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle, SupportedStyles.
-# SupportedStyles: single_quotes, double_quotes
-Style/StringLiteralsInInterpolation:
-  Enabled: false
-
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle, SupportedStyles.
-# SupportedStyles: final_newline, final_blank_line
-Style/TrailingBlankLines:
-  Exclude:
-    - 'test/adapter/null_test.rb'

active_model_serializers.gemspec

@@ -23,31 +23,31 @@ Gem::Specification.new do |spec|
 
   rails_versions = ['>= 4.1', '< 6']
   spec.add_runtime_dependency 'activemodel', rails_versions
-    # 'activesupport', rails_versions
-    # 'builder'
+  # 'activesupport', rails_versions
+  # 'builder'
 
   spec.add_runtime_dependency 'actionpack', rails_versions
-    # 'activesupport', rails_versions
-    # 'rack'
-    # 'rack-test', '~> 0.6.2'
+  # 'activesupport', rails_versions
+  # 'rack'
+  # 'rack-test', '~> 0.6.2'
 
   spec.add_runtime_dependency 'railties', rails_versions
-    # 'activesupport', rails_versions
-    # 'actionpack', rails_versions
-    # 'rake', '>= 0.8.7'
+  # 'activesupport', rails_versions
+  # 'actionpack', rails_versions
+  # 'rake', '>= 0.8.7'
 
   # 'activesupport', rails_versions
-    # 'i18n,
-    # 'tzinfo'
-    # 'minitest'
-    # 'thread_safe'
+  # 'i18n,
+  # 'tzinfo'
+  # 'minitest'
+  # 'thread_safe'
 
   spec.add_runtime_dependency 'jsonapi', '~> 0.1.1.beta2'
 
   spec.add_development_dependency 'activerecord', rails_versions
-    # arel
-    # activesupport
-    # activemodel
+  # arel
+  # activesupport
+  # activemodel
 
   # Soft dependency for pagination
   spec.add_development_dependency 'kaminari', ' ~> 0.16.3'

lib/action_controller/serialization.rb

@@ -19,12 +19,13 @@ module ActionController
     end
 
     def serialization_scope
-      send(_serialization_scope) if _serialization_scope &&
-        respond_to?(_serialization_scope, true)
+      return unless _serialization_scope && respond_to?(_serialization_scope, true)
+
+      send(_serialization_scope)
     end
 
     def get_serializer(resource, options = {})
-      if !use_adapter?
+      unless use_adapter?
         warn 'ActionController::Serialization#use_adapter? has been removed. '\
           "Please pass 'adapter: false' or see ActiveSupport::SerializableResource.new"
         options[:adapter] = false

lib/active_model/serializer.rb

@@ -125,10 +125,9 @@ module ActiveModel
       self.root = instance_options[:root]
       self.scope = instance_options[:scope]
 
-      scope_name = instance_options[:scope_name]
-      if scope_name && !respond_to?(scope_name)
-        define_singleton_method scope_name, lambda { scope }
-      end
+      return if !(scope_name = instance_options[:scope_name]) || respond_to?(scope_name)
+
+      define_singleton_method scope_name, -> { scope }
     end
 
     def success?

lib/active_model_serializers/deprecate.rb

@@ -36,7 +36,7 @@ module ActiveModelSerializers
           target = is_a?(Module) ? "#{self}." : "#{self.class}#"
           msg = ["NOTE: #{target}#{name} is deprecated",
                  replacement == :none ? ' with no replacement' : "; use #{replacement} instead",
-                 "\n#{target}#{name} called from #{ActiveModelSerializers.location_of_caller.join(":")}"]
+                 "\n#{target}#{name} called from #{ActiveModelSerializers.location_of_caller.join(':')}"]
           warn "#{msg.join}."
           send old, *args, &block
         end

lib/active_model_serializers/model.rb

@@ -21,7 +21,7 @@ module ActiveModelSerializers
 
     # Defaults to the downcased model name and updated_at
     def cache_key
-      attributes.fetch(:cache_key) { "#{self.class.name.downcase}/#{id}-#{updated_at.strftime("%Y%m%d%H%M%S%9N")}" }
+      attributes.fetch(:cache_key) { "#{self.class.name.downcase}/#{id}-#{updated_at.strftime('%Y%m%d%H%M%S%9N')}" }
     end
 
     # Defaults to the time the serializer file was modified.

test/action_controller/serialization_test.rb

@@ -74,7 +74,7 @@ module ActionController
         end
 
         def update_and_render_object_with_cache_enabled
-          @post.updated_at = Time.now
+          @post.updated_at = Time.zone.now
 
           generate_cached_serializer(@post)
           render json: @post

test/adapter/json_api/json_api_test.rb

@@ -22,10 +22,8 @@ module ActiveModelSerializers
         adapter = ActiveModelSerializers::Adapter::JsonApi.new(serializer)
 
         assert_equal({
-          reviews: { data: [
-                      { type: 'comments', id: '1' },
-                      { type: 'comments', id: '2' }
-                  ] },
+          reviews: { data: [{ type: 'comments', id: '1' },
+                            { type: 'comments', id: '2' }] },
           writer: { data: { type: 'authors', id: '1' } },
           site: { data: { type: 'blogs', id: '1' } }
           }, adapter.serializable_hash[:data][:relationships])

test/adapter/json_api/type_test.rb

@@ -47,7 +47,7 @@ module ActiveModel
             assert_equal(expected_type, hash.fetch(:data).fetch(:type))
           end
 
-          def with_jsonapi_resource_type inflection
+          def with_jsonapi_resource_type(inflection)
             old_inflection = ActiveModelSerializers.config.jsonapi_resource_type
             ActiveModelSerializers.config.jsonapi_resource_type = inflection
             yield

test/adapter/null_test.rb

@@ -20,4 +20,3 @@ module ActiveModelSerializers
     end
   end
 end
-

test/cache_test.rb

@@ -101,7 +101,7 @@ module ActiveModelSerializers
       uncached_author_serializer = AuthorSerializer.new(uncached_author)
 
       render_object_with_cache(uncached_author)
-      key = "#{uncached_author_serializer.class._cache_key}/#{uncached_author_serializer.object.id}-#{uncached_author_serializer.object.updated_at.strftime("%Y%m%d%H%M%S%9N")}"
+      key = "#{uncached_author_serializer.class._cache_key}/#{uncached_author_serializer.object.id}-#{uncached_author_serializer.object.updated_at.strftime('%Y%m%d%H%M%S%9N')}"
       key = "#{key}/#{adapter.cache_key}"
       assert_equal(uncached_author_serializer.attributes.to_json, cache_store.fetch(key).to_json)
     end

test/fixtures/poro.rb

@@ -8,7 +8,7 @@ class Model < ActiveModelSerializers::Model
   # Convenience when not adding @attributes readers and writers
   def method_missing(meth, *args)
     if meth.to_s =~ /^(.*)=$/
-      attributes[$1.to_sym] = args[0]
+      attributes[Regexp.last_match(1).to_sym] = args[0]
     elsif attributes.key?(meth)
       attributes[meth]
     else
@@ -64,7 +64,7 @@ VirtualValue = Class.new(Model)
 Comment = Class.new(Model) do
   # Uses a custom non-time-based cache key
   def cache_key
-    "#{self.class.name.downcase}/#{self.id}"
+    "#{self.class.name.downcase}/#{id}"
   end
 end
 

test/grape_test.rb

@@ -39,12 +39,12 @@ class ActiveModelSerializers::GrapeTest < ActiveSupport::TestCase
         begin
           Kaminari.paginate_array(
             [
-                  Profile.new(id: 1, name: 'Name 1', description: 'Description 1', comments: 'Comments 1'),
-                  Profile.new(id: 2, name: 'Name 2', description: 'Description 2', comments: 'Comments 2'),
-                  Profile.new(id: 3, name: 'Name 3', description: 'Description 3', comments: 'Comments 3'),
-                  Profile.new(id: 4, name: 'Name 4', description: 'Description 4', comments: 'Comments 4'),
-                  Profile.new(id: 5, name: 'Name 5', description: 'Description 5', comments: 'Comments 5')
-              ]
+              Profile.new(id: 1, name: 'Name 1', description: 'Description 1', comments: 'Comments 1'),
+              Profile.new(id: 2, name: 'Name 2', description: 'Description 2', comments: 'Comments 2'),
+              Profile.new(id: 3, name: 'Name 3', description: 'Description 3', comments: 'Comments 3'),
+              Profile.new(id: 4, name: 'Name 4', description: 'Description 4', comments: 'Comments 4'),
+              Profile.new(id: 5, name: 'Name 5', description: 'Description 5', comments: 'Comments 5')
+            ]
           ).page(1).per(collection_per)
         end
     end

test/lint_test.rb

@@ -30,7 +30,7 @@ module ActiveModel
         def errors
         end
 
-        def self.human_attribute_name(attr, options = {})
+        def self.human_attribute_name(_, _ = {})
         end
 
         def self.lookup_ancestors

test/serializers/serializer_for_test.rb

@@ -41,7 +41,9 @@ module ActiveModel
         end
 
         class CustomProfile
-          def serializer_class; ProfileSerializer; end
+          def serializer_class
+            ProfileSerializer
+          end
         end
 
         Tweet = Class.new(::Model)