Fix bug in domains not returning those where a contact was only a registrant

test/integration/api/registrant/registrant_api_registry_locks_test.rb

@@ -109,6 +109,18 @@ class RegistrantApiRegistryLocksTest < ApplicationIntegrationTest
                  response_json)
   end
 
+  def test_registrant_can_lock_a_domain
+    post '/api/v1/registrant/domains/1b3ee442-e8fe-4922-9492-8fcb9dccc69c/registry_lock',
+         {}, @auth_headers
+
+    assert_equal(200, response.status)
+    response_json = JSON.parse(response.body, symbolize_names: true)
+
+    assert(response_json[:statuses].include?(DomainStatus::SERVER_DELETE_PROHIBITED))
+    assert(response_json[:statuses].include?(DomainStatus::SERVER_TRANSFER_PROHIBITED))
+    assert(response_json[:statuses].include?(DomainStatus::SERVER_UPDATE_PROHIBITED))
+  end
+
   private
 
   def auth_token

test/models/registrant_user_test.rb

@@ -13,10 +13,10 @@ class RegistrantUserTest < ActiveSupport::TestCase
 
   def test_domains_returns_an_list_of_distinct_domains_associated_with_a_specific_id_code
     domain_names = @user.domains.pluck(:name)
-    assert_equal(3, domain_names.length)
+    assert_equal(4, domain_names.length)
 
-    # User is a registrant, but not a contact for the domain.
-    refute(domain_names.include?('shop.test'))
+    # User is a registrant, but not a contact for the domain. Should be included in the list.
+    assert(domain_names.include?('shop.test'))
   end
 
   def test_administered_domains_returns_a_list_of_domains