1 files changed, 25 insertions, 0 deletions
diff --git a/activerecord/test/cases/timestamp_test.rb b/activerecord/test/cases/timestamp_test.rb
index 24b237a72b..6c3596347d 100644
--- a/activerecord/test/cases/timestamp_test.rb
+++ b/activerecord/test/cases/timestamp_test.rb
@@ -30,6 +30,24 @@ class TimestampTest < ActiveRecord::TestCase
     assert @previously_updated_at != @developer.updated_at
   end
   
+  def test_touching_a_record_updates_its_timestamp_even_if_object_instance_is_invalid
+    @developer.name = nil
+    @developer.touch
+    
+    assert @previously_updated_at != @developer.updated_at
+  end
+  
+  def test_touch_bang_a_record_updates_its_timestamp
+    @developer.touch!
+    
+    assert @previously_updated_at != @developer.updated_at
+  end
+  
+  def test_touch_banging_a_record_fails_if_object_instance_is_invalid
+    @developer.name = nil
+    assert_raise(ActiveRecord::RecordInvalid) { @developer.touch! }
+  end
+  
   def test_touching_a_different_attribute
     previously_created_at = @developer.created_at
     @developer.touch(:created_at)
@@ -37,6 +55,13 @@ class TimestampTest < ActiveRecord::TestCase
     assert previously_created_at != @developer.created_at
   end
   
+  def test_touch_banging_a_different_attribute
+    previously_created_at = @developer.created_at
+    @developer.touch!(:created_at)
+
+    assert previously_created_at != @developer.created_at
+  end
+  
   def test_saving_a_record_with_a_belongs_to_that_specifies_touching_the_parent_should_update_the_parent_updated_at
     pet   = Pet.first
     owner = pet.owner