.travis.yml in arel-mysql-index-hint-0.2.0 vs .travis.yml in arel-mysql-index-hint-0.2.1

@@ -1,12 +1,27 @@
+dist: trusty
+sudo: required
 language: ruby
 rvm:
   - 2.0.0
-  - 2.1.5
-  - 2.2.1
+  - 2.1.8
+  - 2.2.4
+  - 2.3.0
+before_install:
+  - gem install bundler
+before_script:
+  - docker-compose up -d
+  - function mysql_ping { mysqladmin -u root -h 127.0.0.1 -ppassword ping > /dev/null 2> /dev/null; }
+  - for i in {1..60}; do mysql_ping && break; sleep 1; done
 script:
   - bundle install
   - bundle exec rake
 gemfile:
   - gemfiles/activerecord_4.0.gemfile
   - gemfiles/activerecord_4.1.gemfile
   - gemfiles/activerecord_4.2.gemfile
+services:
+  - docker
+addons:
+  apt:
+    packages:
+      - mysql-client-5.6