Remove 'Adapter' suffix from adapters since they are in Adapter:: namespace

test/adapter/json_api/belongs_to_test.rb

@@ -3,7 +3,7 @@ require 'test_helper'
 module ActiveModel
   class Serializer
     class Adapter
-      class JsonApiAdapter
+      class JsonApi
         class BelongsToTest < Minitest::Test
           def setup
             @post = Post.new(id: 42, title: 'New Post', body: 'Body')
@@ -12,7 +12,7 @@ module ActiveModel
             @comment.post = @post
 
             @serializer = CommentSerializer.new(@comment)
-            @adapter = ActiveModel::Serializer::Adapter::JsonApiAdapter.new(@serializer)
+            @adapter = ActiveModel::Serializer::Adapter::JsonApi.new(@serializer)
           end
 
           def test_includes_post_id

test/adapter/json_api/has_many.rb

@@ -3,7 +3,7 @@ require 'test_helper'
 module ActiveModel
   class Serializer
     class Adapter
-      class JsonApiAdapter
+      class JsonApi
         class HasManyTest < Minitest::Test
           def setup
             @post = Post.new(title: 'New Post', body: 'Body')

test/adapter/json_test.rb

@@ -8,7 +8,7 @@ module ActiveModel
           @profile = Profile.new({ name: 'Name 1', description: 'Description 1', comments: 'Comments 1' })
           @profile_serializer = ProfileSerializer.new(@profile)
 
-          @adapter = JsonAdapter.new(@profile_serializer)
+          @adapter = Json.new(@profile_serializer)
         end
 
         def test_serializable_hash

test/adapter/null_test.rb

@@ -3,12 +3,12 @@ require 'test_helper'
 module ActiveModel
   class Serializer
     class Adapter
-      class NullAdapterTest < Minitest::Test
+      class NullTest < Minitest::Test
         def setup
           profile = Profile.new({ name: 'Name 1', description: 'Description 1', comments: 'Comments 1' })
           serializer = ProfileSerializer.new(profile)
 
-          @adapter = NullAdapter.new(serializer)
+          @adapter = Null.new(serializer)
         end
 
         def test_serializable_hash