Make domain unavailable when zone with the same origin exists

app/models/dns/domain_name.rb

@@ -7,7 +7,7 @@ module DNS
     end
 
     def unavailable?
-      registered? || blocked?
+      registered? || blocked? || zone_with_same_origin?
     end
 
     def unavailability_reason
@@ -15,6 +15,8 @@ module DNS
         :registered
       elsif blocked?
         :blocked
+      elsif zone_with_same_origin?
+        :zone_with_same_origin
       end
     end
 
@@ -29,5 +31,9 @@ module DNS
     def blocked?
       BlockedDomain.where(name: name).any?
     end
+
+    def zone_with_same_origin?
+      DNS::Zone.where(origin: name).any?
+    end
   end
 end

app/models/epp/domain.rb

@@ -805,8 +805,8 @@ class Epp::Domain < Domain
         domain_name = DNS::DomainName.new(domain_name_as_string)
 
         if domain_name.unavailable?
-          reason = domain_name.unavailability_reason
-          result << { name: domain_name_as_string, avail: 0, reason: I18n.t("errors.messages.epp_domain_#{reason}") }
+          reason = I18n.t("errors.messages.epp_domain_#{domain_name.unavailability_reason}")
+          result << { name: domain_name_as_string, avail: 0, reason: reason }
           next
         end
 

config/locales/en.yml

@@ -198,6 +198,7 @@ en:
       blank: 'is missing'
       epp_domain_registered: in use
       epp_domain_blocked: Blocked
+      epp_domain_zone_with_same_origin: Zone with the same origin exists
       epp_obj_does_not_exist: 'Object does not exist'
       epp_authorization_error: 'Authorization error'
       epp_id_taken: 'Contact id already exists'

test/integration/epp/domain/check/base_test.rb

@@ -134,6 +134,29 @@ class EppDomainCheckBaseTest < ApplicationIntegrationTest
     assert_equal 'Blocked', response_xml.at_xpath('//domain:reason', 'domain' => 'https://epp.tld.ee/schema/domain-eis-1.0.xsd').text
   end
 
+  def test_domain_is_unavailable_when_zone_with_the_same_origin_exists
+    assert_equal 'test', dns_zones(:one).origin
+
+    request_xml = <<-XML
+      <?xml version="1.0" encoding="UTF-8" standalone="no"?>
+      <epp xmlns="https://epp.tld.ee/schema/epp-ee-1.0.xsd">
+        <command>
+          <check>
+            <domain:check xmlns:domain="https://epp.tld.ee/schema/domain-eis-1.0.xsd">
+              <domain:name>test</domain:name>
+            </domain:check>
+          </check>
+        </command>
+      </epp>
+    XML
+
+    post '/epp/command/check', { frame: request_xml }, 'HTTP_COOKIE' => 'session=api_bestnames'
+
+    response_xml = Nokogiri::XML(response.body)
+    assert_equal '0', response_xml.at_xpath('//domain:name', 'domain' => 'https://epp.tld.ee/schema/domain-eis-1.0.xsd')['avail']
+    assert_equal 'Zone with the same origin exists', response_xml.at_xpath('//domain:reason', 'domain' => 'https://epp.tld.ee/schema/domain-eis-1.0.xsd').text
+  end
+
   def test_multiple_domains
     request_xml = <<-XML
       <?xml version="1.0" encoding="UTF-8" standalone="no"?>

test/models/dns/domain_name_test.rb

@@ -16,4 +16,12 @@ class DNS::DomainNameTest < ActiveSupport::TestCase
     assert domain_name.unavailable?
     assert_equal :blocked, domain_name.unavailability_reason
   end
+
+  def test_unavailable_when_zone_with_the_same_origin_exists
+    domain_name = DNS::DomainName.new('test')
+    assert_equal 'test', dns_zones(:one).origin
+
+    assert domain_name.unavailable?
+    assert_equal :zone_with_same_origin, domain_name.unavailability_reason
+  end
 end