appraise "rails-4-2" do
  gem "rails",    "~> 4.2.0"
end

if RUBY_VERSION >= "2.2.2"
  appraise "rails-5-0" do
    gem "rails",    ">= 5.0.0", "< 5.1"
  end

  appraise "rails-5-1" do
    gem "rails",    ">= 5.1.0", "< 5.2"
  end
end
