Favor ActiveSupport::TestCase over Minitest::Test

- Better minitest 4/5 support
- Better DSL
- Already available with no changes
- Consistent interface

test/adapter/json_api/belongs_to_test.rb

@@ -4,7 +4,7 @@ module ActiveModel
   class Serializer
     module Adapter
       class JsonApi
-        class BelongsToTest < Minitest::Test
+        class BelongsToTest < ActiveSupport::TestCase
           def setup
             @author = Author.new(id: 1, name: 'Steve K.')
             @author.bio = nil

test/adapter/json_api/collection_test.rb

@@ -4,7 +4,7 @@ module ActiveModel
   class Serializer
     module Adapter
       class JsonApi
-        class CollectionTest < Minitest::Test
+        class CollectionTest < ActiveSupport::TestCase
           def setup
             @author = Author.new(id: 1, name: 'Steve K.')
             @author.bio = nil

test/adapter/json_api/fields_test.rb

@@ -4,7 +4,7 @@ module ActiveModel
   class Serializer
     module Adapter
       class JsonApi
-        class FieldsTest < Minitest::Test
+        class FieldsTest < ActiveSupport::TestCase
           Post = Class.new(::Model)
           class PostSerializer < ActiveModel::Serializer
             type 'posts'

test/adapter/json_api/has_many_embed_ids_test.rb

@@ -4,7 +4,7 @@ module ActiveModel
   class Serializer
     module Adapter
       class JsonApi
-        class HasManyEmbedIdsTest < Minitest::Test
+        class HasManyEmbedIdsTest < ActiveSupport::TestCase
           def setup
             @author = Author.new(name: 'Steve K.')
             @author.bio = nil

test/adapter/json_api/has_many_explicit_serializer_test.rb

@@ -5,7 +5,7 @@ module ActiveModel
     module Adapter
       class JsonApi
         # Test 'has_many :assocs, serializer: AssocXSerializer'
-        class HasManyExplicitSerializerTest < Minitest::Test
+        class HasManyExplicitSerializerTest < ActiveSupport::TestCase
           def setup
             @post = Post.new(title: 'New Post', body: 'Body')
             @author = Author.new(name: 'Jane Blogger')

test/adapter/json_api/has_many_test.rb

@@ -4,7 +4,7 @@ module ActiveModel
   class Serializer
     module Adapter
       class JsonApi
-        class HasManyTest < Minitest::Test
+        class HasManyTest < ActiveSupport::TestCase
           def setup
             ActionController::Base.cache_store.clear
             @author = Author.new(id: 1, name: 'Steve K.')

test/adapter/json_api/has_one_test.rb

@@ -4,7 +4,7 @@ module ActiveModel
   class Serializer
     module Adapter
       class JsonApi
-        class HasOneTest < Minitest::Test
+        class HasOneTest < ActiveSupport::TestCase
           def setup
             @author = Author.new(id: 1, name: 'Steve K.')
             @bio = Bio.new(id: 43, content: 'AMS Contributor')

test/adapter/json_api/json_api_test.rb

@@ -3,7 +3,7 @@ require 'test_helper'
 module ActiveModel
   class Serializer
     module Adapter
-      class JsonApiTest < Minitest::Test
+      class JsonApiTest < ActiveSupport::TestCase
         def setup
           ActionController::Base.cache_store.clear
           @author = Author.new(id: 1, name: 'Steve K.')

test/adapter/json_api/linked_test.rb

@@ -9,7 +9,7 @@ module ActiveModel
   class Serializer
     module Adapter
       class JsonApi
-        class LinkedTest < Minitest::Test
+        class LinkedTest < ActiveSupport::TestCase
           def setup
             @author1 = Author.new(id: 1, name: 'Steve K.')
             @author2 = Author.new(id: 2, name: 'Tenderlove')
@@ -283,7 +283,7 @@ module ActiveModel
           end
         end
 
-        class NoDuplicatesTest < Minitest::Test
+        class NoDuplicatesTest < ActiveSupport::TestCase
           Post = Class.new(::Model)
           Author = Class.new(::Model)
 

test/adapter/json_api/links_test.rb

@@ -4,7 +4,7 @@ module ActiveModel
   class Serializer
     module Adapter
       class JsonApi
-        class LinksTest < Minitest::Test
+        class LinksTest < ActiveSupport::TestCase
           LinkAuthor = Class.new(::Model)
           class LinkAuthorSerializer < ActiveModel::Serializer
             link :self do

test/adapter/json_api/pagination_links_test.rb

@@ -8,7 +8,7 @@ module ActiveModel
   class Serializer
     module Adapter
       class JsonApi
-        class PaginationLinksTest < Minitest::Test
+        class PaginationLinksTest < ActiveSupport::TestCase
           URI = 'http://example.com'
 
           def setup

test/adapter/json_api/resource_type_config_test.rb

@@ -4,7 +4,7 @@ module ActiveModel
   class Serializer
     module Adapter
       class JsonApi
-        class ResourceTypeConfigTest < Minitest::Test
+        class ResourceTypeConfigTest < ActiveSupport::TestCase
           class ProfileTypeSerializer < ActiveModel::Serializer
             attributes :name
             type 'profile'

test/adapter/json_api/toplevel_jsonapi_test.rb

@@ -4,7 +4,7 @@ module ActiveModel
   class Serializer
     module Adapter
       class JsonApi
-        class TopLevelJsonApiTest < Minitest::Test
+        class TopLevelJsonApiTest < ActiveSupport::TestCase
           def setup
             @author = Author.new(id: 1, name: 'Steve K.')
             @author.bio = nil