diff --git a/activerecord/test/cases/associations/has_many_through_associations_test.rb b/activerecord/test/cases/associations/has_many_through_associations_test.rb
index ff79919..1d3feea 100644
--- a/activerecord/test/cases/associations/has_many_through_associations_test.rb
+++ b/activerecord/test/cases/associations/has_many_through_associations_test.rb
@@ -85,6 +85,17 @@ class HasManyThroughAssociationsTest < ActiveRecord::TestCase
     assert posts(:thinking).reload.people(true).collect(&:first_name).include?("Ted")
   end
 
+  def test_associate_by_saving_association
+    person1 = posts(:thinking).people.build(:first_name=>"Bob")
+    person2 = posts(:thinking).people.new(:first_name=>"Ted")
+
+    person1.save
+    person2.save
+
+    assert posts(:thinking).reload.people(true).collect(&:first_name).include?("Bob")
+    assert posts(:thinking).reload.people(true).collect(&:first_name).include?("Ted")
+  end
+
   def test_delete_association
     assert_queries(2){posts(:welcome);people(:michael); }