spec: Update travis configuration

.travis.yml

@@ -2,7 +2,7 @@
 sudo: false
 language: ruby
 cache: bundler
-script: "bundle exec rake test"
+script: "bundle exec rake validate lint rubocop spec"
 #Inserting below due to the following issue: https://github.com/travis-ci/travis-ci/issues/3531#issuecomment-88311203
 before_install:
   - gem update bundler