1 files changed, 21 insertions, 0 deletions
diff --git a/activerecord/test/cases/attribute_methods_test.rb b/activerecord/test/cases/attribute_methods_test.rb
index d03c3ee1a1..84f75cc803 100644
--- a/activerecord/test/cases/attribute_methods_test.rb
+++ b/activerecord/test/cases/attribute_methods_test.rb
@@ -132,6 +132,27 @@ class AttributeMethodsTest < ActiveRecord::TestCase
     end
   end
 
+  def test_read_attributes_after_type_cast_on_datetime
+    tz = "Pacific Time (US & Canada)"
+
+    in_time_zone tz do
+      record = @target.new
+
+      date_string = "2011-03-24"
+      time        = Time.zone.parse date_string
+
+      record.written_on = date_string
+      assert_equal date_string, record.written_on_before_type_cast
+      assert_equal time, record.written_on
+      assert_equal ActiveSupport::TimeZone[tz], record.written_on.time_zone
+
+      record.save
+      record.reload
+
+      assert_equal time, record.written_on
+    end
+  end
+
   def test_hash_content
     topic = Topic.new
     topic.content = { "one" => 1, "two" => 2 }