Allow for the dirty tracking to work with the aliased name of aliased attributes.

Signed-off-by: Michael Koziarski <michael@koziarski.com>
[#812 state:committed]

1 files changed, 13 insertions, 0 deletions

diff --git a/activerecord/test/cases/dirty_test.rb b/activerecord/test/cases/dirty_test.rb
index 4fe1d79f4d..39d38c4e1e 100644
--- a/activerecord/test/cases/dirty_test.rb
+++ b/activerecord/test/cases/dirty_test.rb
@@ -45,6 +45,19 @@ class DirtyTest < ActiveRecord::TestCase
     assert_nil pirate.catchphrase_change
   end
 
+  def test_aliased_attribute_changes
+    # the actual attribute here is name, title is an
+    # alias setup via alias_attribute
+    parrot = Parrot.new
+    assert !parrot.title_changed?
+    assert_nil parrot.title_change
+
+    parrot.name = 'Sam'
+    assert parrot.title_changed?
+    assert_nil parrot.title_was
+    assert_equal parrot.name_change, parrot.title_change
+  end
+
   def test_nullable_integer_not_marked_as_changed_if_new_value_is_blank
     pirate = Pirate.new