clarion/spec/support/matchers/has_translatable.rb

RSpec::Matchers.define :have_translatable do |expected|
  match do |actual|
    I18n.locale = :bg
    actual.send "#{expected}=", "Test Bulgarian"

    I18n.locale = :en
    actual.send "#{expected}=", "Test English"

    expect(actual.send(expected)).to eq "Test English"

    I18n.locale = :bg
    expect(actual.send(expected)).to eq "Test Bulgarian"
  end
end