Gemfile

source 'https://rubygems.org'

gem 'u-case', '~> 4.5', '>= 4.5.1'

activemodel_version = ENV['ACTIVEMODEL_VERSION']

activemodel = case activemodel_version
              when '3.2' then '3.2.22'
              when '4.0' then '4.0.13'
              when '4.1' then '4.1.16'
              when '4.2' then '4.2.11'
              when '5.0' then '5.0.7'
              when '5.1' then '5.1.7'
              when '5.2' then '5.2.4'
              when '6.0' then '6.0.3.4'
              when '6.1' then '6.1.2'
              end

simplecov_version =
  case RUBY_VERSION
  when /\A2.[23]/ then '0.17.1'
  when /\A2.4/ then '~> 0.18.5'
  else '~> 0.21.2'
  end

group :test do
  if activemodel_version
    gem 'activesupport', activemodel, require: false
    gem 'activemodel', activemodel, require: false
    gem 'minitest', activemodel_version < '4.1' ? '~> 4.2' : '~> 5.0'
  else
    gem 'minitest', '~> 5.0'
  end

  gem 'simplecov', simplecov_version, require: false
end

gem 'rake', '~> 13.0'

# Specify your gem's dependencies in u-attributes.gemspec
gemspec