Merge pull request #326 from berkos/add_latest_rails_version

Update Travis CI configuration

Author: excpt

.travis.yml

@@ -7,14 +7,23 @@ rvm:
   - 2.4
   - 2.5
   - 2.6
-gemfiles:
+gemfile:
   - gemfiles/standalone.gemfile
   - gemfiles/rails_5.0.gemfile
   - gemfiles/rails_5.1.gemfile
   - gemfiles/rails_5.2.gemfile
+  - gemfiles/rails_6.rc1.gemfile
 script: "bundle exec rspec && bundle exec codeclimate-test-reporter"
 before_install:
   - sudo add-apt-repository ppa:chris-lea/libsodium -y
   - sudo apt-get update -q
   - sudo apt-get install libsodium-dev -y
   - gem install bundler
+
+matrix:
+  fast_finish: true
+  exclude:
+    - gemfile: gemfiles/rails_6.rc1.gemfile
+      rvm: 2.3
+    - gemfile: gemfiles/rails_6.rc1.gemfile
+      rvm: 2.4

gemfiles/rails_6.rc1.gemfile

@@ -0,0 +1,7 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem 'rails', '~> 6.0.0.rc1'
+
+gemspec path: "../"