missing translations

spec_helper.rb

##
# Raises error if missing translation key
##
config.before(:all, type: :controller) do
  @_i18n_exception_handler = I18n.exception_handler
  I18n.exception_handler = lambda { |*args| raise args.first.to_s }
end

config.after(:all, type: :controller) do
  I18n.exception_handler = @_i18n_exception_handler
end

config.before(:all, type: :request) do
  @_i18n_exception_handler = I18n.exception_handler
  I18n.exception_handler = lambda { |*args| raise args.first.to_s }
end

config.after(:all, type: :request) do
  I18n.exception_handler = @_i18n_exception_handler
end