Fixed that adding a record to a has_and_belongs_to collection would always save it -- now it only saves if its a new record #1203 [Alisdair McDiarmid]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@1453 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 16 insertions, 0 deletions

diff --git a/activerecord/test/associations_test.rb b/activerecord/test/associations_test.rb
index 02212a862b..214b582f56 100755
--- a/activerecord/test/associations_test.rb
+++ b/activerecord/test/associations_test.rb
@@ -823,6 +823,22 @@ class HasAndBelongsToManyAssociationsTest < Test::Unit::TestCase
     assert_equal 2, action_controller.developers(true).size
   end
 
+  def test_adding_from_the_project_fixed_timestamp
+    jamis = Developer.find(2)
+    action_controller = Project.find(2)
+    action_controller.developers.reload
+    assert_equal 1, jamis.projects.size
+    assert_equal 1, action_controller.developers.size
+    updated_at = jamis.updated_at
+
+    action_controller.developers << jamis
+
+    assert_equal updated_at, jamis.updated_at
+    assert_equal 2, jamis.projects(true).size
+    assert_equal 2, action_controller.developers.size
+    assert_equal 2, action_controller.developers(true).size
+  end
+
   def test_adding_multiple
     aredridel = Developer.new("name" => "Aredridel")
     aredridel.save