Test GraphQL ruby gem 1.8 as well

.gitignore

@@ -10,3 +10,4 @@
 
 # rspec failure tracking
 .rspec_status
+.ruby-version

.travis.yml

@@ -1,7 +1,23 @@
 sudo: false
 language: ruby
-rvm:
-  - 2.3.4
-env:
-  - CI=true
-before_install: gem install bundler -v 1.15.3
+before_install: gem install bundler -v 1.17.1
+matrix:
+  include:
+    - gemfile: graphql-1.7.gemfile
+      env: GRAPHQL_RUBY_VERSION=1_7 CI=true
+      rvm: 2.3.8
+    - gemfile: graphql-1.8.gemfile
+      env: GRAPHQL_RUBY_VERSION=1_8 CI=true
+      rvm: 2.3.8
+    - gemfile: graphql-1.7.gemfile
+      env: GRAPHQL_RUBY_VERSION=1_7 CI=true
+      rvm: 2.4.5
+    - gemfile: graphql-1.8.gemfile
+      env: GRAPHQL_RUBY_VERSION=1_8 CI=true
+      rvm: 2.4.5
+    - gemfile: graphql-1.7.gemfile
+      env: GRAPHQL_RUBY_VERSION=1_7 CI=true
+      rvm: 2.5.3
+    - gemfile: graphql-1.8.gemfile
+      env: GRAPHQL_RUBY_VERSION=1_8 CI=true
+      rvm: 2.5.3

graphql-1.7.gemfile

@@ -0,0 +1,7 @@
+source "https://rubygems.org"
+
+gem 'coveralls'
+
+gem "graphql", "~> 1.7"
+
+gemspec

graphql-1.8.gemfile

@@ -0,0 +1,7 @@
+source "https://rubygems.org"
+
+gem 'coveralls'
+
+gem "graphql", "~> 1.8"
+
+gemspec

spec/fixtures/graphql_schema.rb

@@ -1,19 +1,59 @@
-UserType = GraphQL::ObjectType.define do
-  name "User"
-  field :id, !types.ID
-end
+case ENV['GRAPHQL_RUBY_VERSION']
+when '1_7'
+  UserType = GraphQL::ObjectType.define do
+    name "User"
+    field :id, !types.ID
+  end
 
-PostType = GraphQL::ObjectType.define do
-  name "Post"
-  field :user, !UserType, resolve: ->(post, args, ctx) { post.user_lazy }
-end
+  PostType = GraphQL::ObjectType.define do
+    name "Post"
+    field :user, !UserType, resolve: ->(object, args, ctx) { object.user_lazy }
+    field :userId, !types.Int, resolve: ->(object, args, ctx) do
+      BatchLoader.for(object).batch do |posts, loader|
+        posts.each { |p| loader.call(p, p.user_lazy.id) }
+      end
+    end
+  end
 
-QueryType = GraphQL::ObjectType.define do
-  name "Query"
-  field :posts, !types[PostType], resolve: ->(obj, args, ctx) { Post.all }
-end
+  QueryType = GraphQL::ObjectType.define do
+    name "Query"
+    field :posts, !types[PostType], resolve: ->(obj, args, ctx) { Post.all }
+  end
+
+  GraphqlSchema = GraphQL::Schema.define do
+    query QueryType
+    use BatchLoader::GraphQL
+  end
+when '1_8'
+  class UserType < GraphQL::Schema::Object
+    field :id, ID, null: false
+  end
+
+  class PostType < GraphQL::Schema::Object
+    field :user, UserType, null: false
+    field :user_id, Int, null: false
+
+    def user
+      object.user_lazy
+    end
+
+    def user_id
+      BatchLoader.for(object).batch do |posts, loader|
+        posts.each { |p| loader.call(p, p.user_lazy.id) }
+      end
+    end
+  end
+
+  class QueryType < GraphQL::Schema::Object
+    field :posts, [PostType], null: false
+
+    def posts
+      Post.all
+    end
+  end
 
-GraphqlSchema = GraphQL::Schema.define do
-  query QueryType
-  use BatchLoader::GraphQL
+  class GraphqlSchema < GraphQL::Schema
+    query QueryType
+    use BatchLoader::GraphQL
+  end
 end

spec/graphql_spec.rb

@@ -10,6 +10,7 @@
       {
         posts {
           user { id }
+          userId
         }
       }
     QUERY
@@ -20,8 +21,8 @@
 
     expect(result['data']).to eq({
       'posts' => [
-        {'user' => {'id' => "1"}},
-        {'user' => {'id' => "2"}}
+        {'user' => {'id' => "1"}, "userId" => 1},
+        {'user' => {'id' => "2"}, "userId" => 2}
       ]
     })
   end