1 files changed, 10 insertions, 0 deletions
diff --git a/activerecord/test/cases/associations/has_many_associations_test.rb b/activerecord/test/cases/associations/has_many_associations_test.rb
index a493ea9974..49999630b6 100644
--- a/activerecord/test/cases/associations/has_many_associations_test.rb
+++ b/activerecord/test/cases/associations/has_many_associations_test.rb
@@ -537,6 +537,16 @@ class HasManyAssociationsTest < ActiveRecord::TestCase
     assert_equal 3, companies(:first_firm).clients_of_firm(true).size
   end
 
+  def test_new_aliased_to_build
+    company = companies(:first_firm)
+    new_client = assert_no_queries { company.clients_of_firm.new("name" => "Another Client") }
+    assert !company.clients_of_firm.loaded?
+
+    assert_equal "Another Client", new_client.name
+    assert !new_client.persisted?
+    assert_equal new_client, company.clients_of_firm.last
+  end
+
   def test_build
     company = companies(:first_firm)
     new_client = assert_no_queries { company.clients_of_firm.build("name" => "Another Client") }