remove dynamic class creation where not needed

test/action_controller/json_api/transform_test.rb

@@ -5,7 +5,9 @@ module Serialization
     class JsonApi
       class KeyTransformTest < ActionController::TestCase
         class KeyTransformTestController < ActionController::Base
-          Post = Class.new(::Model)
+          class Post < ::Model; end
+          class Author < ::Model; end
+          class TopComment < ::Model; end
           class PostSerializer < ActiveModel::Serializer
             type 'posts'
             attributes :title, :body, :publish_at
@@ -22,13 +24,11 @@ class PostSerializer < ActiveModel::Serializer
             end
           end
 
-          Author = Class.new(::Model)
           class AuthorSerializer < ActiveModel::Serializer
             type 'authors'
             attributes :first_name, :last_name
           end
 
-          TopComment = Class.new(::Model)
           class TopCommentSerializer < ActiveModel::Serializer
             type 'top_comments'
             attributes :body

test/adapter/json/transform_test.rb

@@ -15,7 +15,7 @@ def mock_request(key_transform = nil)
           @adapter = ActiveModelSerializers::Adapter::Json.new(serializer, options)
         end
 
-        Post = Class.new(::Model)
+        class Post < ::Model; end
         class PostSerializer < ActiveModel::Serializer
           attributes :id, :title, :body, :publish_at
         end

test/adapter/json_api/fields_test.rb

@@ -4,21 +4,22 @@ module ActiveModelSerializers
   module Adapter
     class JsonApi
       class FieldsTest < ActiveSupport::TestCase
-        Post = Class.new(::Model)
+        class Post < ::Model; end
+        class Author < ::Model; end
+        class Comment < ::Model; end
+
         class PostSerializer < ActiveModel::Serializer
           type 'posts'
           attributes :title, :body
           belongs_to :author
           has_many :comments
         end
 
-        Author = Class.new(::Model)
         class AuthorSerializer < ActiveModel::Serializer
           type 'authors'
           attributes :name, :birthday
         end
 
-        Comment = Class.new(::Model)
         class CommentSerializer < ActiveModel::Serializer
           type 'comments'
           attributes :body

test/adapter/json_api/linked_test.rb

@@ -1,10 +1,9 @@
 require 'test_helper'
 
-NestedPost = Class.new(Model)
+class NestedPost < ::Model; end
 class NestedPostSerializer < ActiveModel::Serializer
   has_many :nested_posts
 end
-
 module ActiveModelSerializers
   module Adapter
     class JsonApi
@@ -283,8 +282,8 @@ def test_nil_link_with_specified_serializer
       end
 
       class NoDuplicatesTest < ActiveSupport::TestCase
-        Post = Class.new(::Model)
-        Author = Class.new(::Model)
+        class Post < ::Model; end
+        class Author < ::Model; end
 
         class PostSerializer < ActiveModel::Serializer
           type 'posts'
@@ -303,8 +302,8 @@ def setup
           @author.posts << @post1
           @author.posts << @post2
 
-          @nestedpost1 = ::NestedPost.new(id: 1, nested_posts: [])
-          @nestedpost2 = ::NestedPost.new(id: 2, nested_posts: [])
+          @nestedpost1 = NestedPost.new(id: 1, nested_posts: [])
+          @nestedpost2 = NestedPost.new(id: 2, nested_posts: [])
           @nestedpost1.nested_posts << @nestedpost1
           @nestedpost1.nested_posts << @nestedpost2
           @nestedpost2.nested_posts << @nestedpost1

test/adapter/json_api/links_test.rb

@@ -4,7 +4,7 @@ module ActiveModelSerializers
   module Adapter
     class JsonApi
       class LinksTest < ActiveSupport::TestCase
-        LinkAuthor = Class.new(::Model)
+        class LinkAuthor < ::Model; end
         class LinkAuthorSerializer < ActiveModel::Serializer
           link :self do
             href "http://example.com/link_author/#{object.id}"

test/adapter/json_api/transform_test.rb

@@ -4,7 +4,10 @@ module ActiveModelSerializers
   module Adapter
     class JsonApi
       class KeyCaseTest < ActiveSupport::TestCase
-        Post = Class.new(::Model)
+        class Post < ::Model; end
+        class Author < ::Model; end
+        class Comment < ::Model; end
+
         class PostSerializer < ActiveModel::Serializer
           type 'posts'
           attributes :title, :body, :publish_at
@@ -23,13 +26,11 @@ class PostSerializer < ActiveModel::Serializer
           end
         end
 
-        Author = Class.new(::Model)
         class AuthorSerializer < ActiveModel::Serializer
           type 'authors'
           attributes :first_name, :last_name
         end
 
-        Comment = Class.new(::Model)
         class CommentSerializer < ActiveModel::Serializer
           type 'comments'
           attributes :body

test/benchmark/bm_caching.rb

@@ -4,7 +4,7 @@
 # https://github.com/ruby-bench/ruby-bench-suite/blob/8ad567f7e43a044ae48c36833218423bb1e2bd9d/rails/benchmarks/actionpack_router.rb
 class ApiAssertion
   include Benchmark::ActiveModelSerializers::TestMethods
-  BadRevisionError = Class.new(StandardError)
+  class BadRevisionError < StandardError; end
 
   def valid?
     caching = get_caching

test/cache_test.rb

@@ -4,22 +4,22 @@
 
 module ActiveModelSerializers
   class CacheTest < ActiveSupport::TestCase
-    UncachedAuthor = Class.new(Author) do
+    class UncachedAuthor < Author
       # To confirm cache_key is set using updated_at and cache_key option passed to cache
       undef_method :cache_key
     end
 
-    Article = Class.new(::Model) do
+    class Article < ::Model
       # To confirm error is raised when cache_key is not set and cache_key option not passed to cache
       undef_method :cache_key
     end
 
-    ArticleSerializer = Class.new(ActiveModel::Serializer) do
+    class ArticleSerializer < ActiveModel::Serializer
       cache only: [:place], skip_digest: true
       attributes :title
     end
 
-    InheritedRoleSerializer = Class.new(RoleSerializer) do
+    class InheritedRoleSerializer < RoleSerializer
       cache key: 'inherited_role', only: [:name, :special_attribute]
       attribute :special_attribute
     end

test/collection_serializer_test.rb

@@ -3,7 +3,7 @@
 module ActiveModel
   class Serializer
     class CollectionSerializerTest < ActiveSupport::TestCase
-      MessagesSerializer = Class.new(ActiveModel::Serializer) do
+      class MessagesSerializer < ActiveModel::Serializer
         type 'messages'
       end