test: Add test with rails 5.2

.travis.yml

@@ -28,6 +28,7 @@ gemfile:
   - gemfiles/rails_5.0.gemfile
   - gemfiles/rails_5.0_nobrainer.gemfile
   - gemfiles/rails_5.1.gemfile
+  - gemfiles/rails_5.2.gemfile
 
 before_script:
   - mkdir /tmp/dynamodb
@@ -47,6 +48,8 @@ matrix:
       gemfile: gemfiles/rails_5.0_nobrainer.gemfile
     - rvm: 2.3.0
       gemfile: gemfiles/rails_5.1.gemfile
+    - rvm: 2.3.0
+      gemfile: gemfiles/rails_5.2.gemfile
     - rvm: 2.5.0
       gemfile: gemfiles/rails_3.2.gemfile
     - rvm: 2.5.0
@@ -59,6 +62,8 @@ matrix:
       gemfile: gemfiles/rails_5.0.gemfile
     - rvm: jruby-9.1.12.0
       gemfile: gemfiles/rails_5.1.gemfile
+    - rvm: jruby-9.1.12.0
+      gemfile: gemfiles/rails_5.2.gemfile
     - rvm: jruby-9.1.12.0
       gemfile: gemfiles/rails_4.2_nobrainer.gemfile
     - rvm: jruby-9.1.12.0

Appraisals

@@ -54,3 +54,12 @@ appraise 'rails_5.1' do
   gem 'aws-sdk', '~>2', platforms: :ruby
   gem 'redis-objects'
 end
+
+appraise 'rails_5.2' do
+  gem 'rails', '5.2'
+  gem 'mongoid', '~>6.0'
+  gem 'sequel'
+  gem 'dynamoid', '~> 1', platforms: :ruby
+  gem 'aws-sdk', '~>2', platforms: :ruby
+  gem 'redis-objects'
+end

gemfiles/rails_5.2.gemfile

@@ -0,0 +1,13 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "sqlite3", "~> 1.3.5", platforms: :ruby
+gem "rails", "5.2"
+gem "mongoid", "~>6.0"
+gem "sequel"
+gem "dynamoid", "~> 1", platforms: :ruby
+gem "aws-sdk", "~>2", platforms: :ruby
+gem "redis-objects"
+
+gemspec path: "../"