Add a test to domain renew

app/helpers/epp/domains_helper.rb

@@ -32,6 +32,7 @@ module Epp::DomainsHelper
   end
 
   def renew_domain
+    # TODO support period unit
     @domain = find_domain
 
     handle_errors(@domain) and return unless @domain
@@ -49,11 +50,11 @@ module Epp::DomainsHelper
   end
 
   def find_domain
-    @domain = Domain.find_by(name: @ph[:name])
-    unless @domain
+    domain = Domain.find_by(name: @ph[:name])
+    unless domain
       epp_errors << {code: '2303', msg: I18n.t('errors.messages.epp_domain_not_found'), value: {obj: 'name', val: @ph[:name]}}
     end
-    @domain
+    domain
   end
 
   def domain_create_params(ph)

app/models/domain.rb

@@ -7,7 +7,7 @@ class Domain < ActiveRecord::Base
   EPP_CODE_MAP = {
     '2302' => ['Domain name already exists', 'Domain name is reserved or restricted'], # Object exists
     '2306' => ['Registrant is missing', 'Admin contact is missing', 'Given and current expire dates do not match'], # Parameter policy error
-    '2004' => ['Nameservers count must be between 1-13'], # Parameter value range error
+    '2004' => ['Nameservers count must be between 1-13', 'Period must add up to 1, 2 or 3 years'], # Parameter value range error
     '2303' => ['Contact was not found'] # Object does not exist
   }
 
@@ -136,7 +136,6 @@ class Domain < ActiveRecord::Base
 
   def validate_period
     return unless period.present?
-
     if period_unit == 'd'
       valid_values = ['365', '366', '710', '712', '1065', '1068']
     elsif period_unit == 'm'
@@ -145,7 +144,7 @@ class Domain < ActiveRecord::Base
       valid_values = ['1', '2', '3']
     end
 
-    errors.add(:period, :step_error) unless valid_values.include?(period.to_s)
+    errors.add(:period, :out_of_range) unless valid_values.include?(period.to_s)
   end
 
   def validate_exp_dates(cur_exp_date)