language: ruby
cache: bundler
rvm:
  - 2.4
  - 2.5
env:
  - XML_PARSER=rexml
  - XML_PARSER=nokogiri
  - XML_PARSER=libxml
  # does not work yet
  # - XML_PARSER=ox

language: ruby
cache: bundler

before_install:
  - gem install bundler

rvm:
  - 2.4
  - 2.5
env:
  - XML_PARSER=rexml
  - XML_PARSER=nokogiri
  - XML_PARSER=libxml
  # does not work yet
  # - XML_PARSER=ox

Fix test on Ruby 2.5
Fix test on Ruby 2.5
