language: ruby
cache: bundler
rvm:
  - 2.3
  - 2.4
  - 2.5
script:
  - bundle exec rake spec
  - bundle exec rake litmus:run
matrix:
  allow_failures:
    - rvm: 2.5

language: ruby
cache: bundler
rvm:
  - 2.3
  - 2.4
  - 2.5
script:
  - bundle exec rake spec
  - bundle exec rake litmus:run

Remove `allow_failures` for Travis for Ruby 2.5
Remove `allow_failures` for Travis for Ruby 2.5
