1 files changed, 30 insertions, 0 deletions
diff --git a/activerecord/test/cases/timestamp_test.rb b/activerecord/test/cases/timestamp_test.rb
new file mode 100644
index 0000000000..e5f8fb9c1d
--- /dev/null
+++ b/activerecord/test/cases/timestamp_test.rb
@@ -0,0 +1,30 @@
+require 'cases/helper'
+require 'models/developer'
+
+class TimestampTest < ActiveRecord::TestCase
+  fixtures :developers
+
+  def setup
+    @developer = Developer.first
+    @previously_updated_at = @developer.updated_at
+  end
+
+  def test_saving_a_changed_record_updates_its_timestamp
+    @developer.name = "Jack Bauer"
+    @developer.save!
+    
+    assert @previously_updated_at != @developer.updated_at
+  end
+  
+  def test_saving_a_unchanged_record_doesnt_update_its_timestamp
+    @developer.save!
+    
+    assert @previously_updated_at == @developer.updated_at
+  end
+  
+  def test_touching_a_record_updates_its_timestamp
+    @developer.touch
+    
+    assert @previously_updated_at != @developer.updated_at
+  end
+end
+\ No newline at end of file