Merge pull request #1050 from bf4/json_api_member

Add top-level jsonapi member to JSON API adapter

test/adapter/json_api/toplevel_jsonapi_test.rb

@@ -0,0 +1,84 @@
+require 'test_helper'
+
+module ActiveModel
+  class Serializer
+    module Adapter
+      class JsonApi
+        class TopLevelJsonApiTest < Minitest::Test
+          def setup
+            @author = Author.new(id: 1, name: 'Steve K.')
+            @author.bio = nil
+            @author.roles = []
+            @blog = Blog.new(id: 23, name: 'AMS Blog')
+            @post = Post.new(id: 42, title: 'New Post', body: 'Body')
+            @anonymous_post = Post.new(id: 43, title: 'Hello!!', body: 'Hello, world!!')
+            @comment = Comment.new(id: 1, body: 'ZOMG A COMMENT')
+            @post.comments = [@comment]
+            @post.blog = @blog
+            @anonymous_post.comments = []
+            @anonymous_post.blog = nil
+            @comment.post = @post
+            @comment.author = nil
+            @post.author = @author
+            @anonymous_post.author = nil
+            @blog = Blog.new(id: 1, name: 'My Blog!!')
+            @blog.writer = @author
+            @blog.articles = [@post, @anonymous_post]
+            @author.posts = []
+          end
+
+          def test_toplevel_jsonapi_defaults_to_false
+            assert_equal config.fetch(:jsonapi_include_toplevel_object), false
+          end
+
+          def test_disable_toplevel_jsonapi
+            with_config(jsonapi_include_toplevel_object: false) do
+              hash = serialize(@post)
+              assert_nil(hash[:jsonapi])
+            end
+          end
+
+          def test_enable_toplevel_jsonapi
+            with_config(jsonapi_include_toplevel_object: true) do
+              hash = serialize(@post)
+              refute_nil(hash[:jsonapi])
+            end
+          end
+
+          def test_default_toplevel_jsonapi_version
+            with_config(jsonapi_include_toplevel_object: true) do
+              hash = serialize(@post)
+              assert_equal('1.0', hash[:jsonapi][:version])
+            end
+          end
+
+          def test_toplevel_jsonapi_no_meta
+            with_config(jsonapi_include_toplevel_object: true) do
+              hash = serialize(@post)
+              assert_nil(hash[:jsonapi][:meta])
+            end
+          end
+
+          def test_toplevel_jsonapi_meta
+            new_config = {
+              jsonapi_include_toplevel_object: true,
+              jsonapi_toplevel_meta: {
+                'copyright' => 'Copyright 2015 Example Corp.'
+              }
+            }
+            with_config(new_config) do
+              hash = serialize(@post)
+              assert_equal(new_config[:jsonapi_toplevel_meta], hash.fetch(:jsonapi).fetch(:meta))
+            end
+          end
+
+          private
+
+          def serialize(resource, options = {})
+            serializable(resource, { adapter: :json_api }.merge!(options)).serializable_hash
+          end
+        end
+      end
+    end
+  end
+end

test/support/serialization_testing.rb

@@ -1,4 +1,8 @@
 module SerializationTesting
+  def config
+    ActiveModel::Serializer.config
+  end
+
   private
 
   def generate_cached_serializer(obj)
@@ -18,6 +22,18 @@ module SerializationTesting
     ActiveModel::Serializer.config.adapter = old_adapter
   end
   alias_method :with_configured_adapter, :with_adapter
+
+  def with_config(hash)
+    old_config = config.dup
+    ActiveModel::Serializer.config.update(hash)
+    yield
+  ensure
+    ActiveModel::Serializer.config.replace(old_config)
+  end
+
+  def serializable(resource, options = {})
+    ActiveModel::SerializableResource.new(resource, options)
+  end
 end
 
 class Minitest::Test