1 files changed, 6 insertions, 0 deletions
diff --git a/activesupport/test/core_ext/date_ext_test.rb b/activesupport/test/core_ext/date_ext_test.rb
index d81693209f..b4f848cd44 100644
--- a/activesupport/test/core_ext/date_ext_test.rb
+++ b/activesupport/test/core_ext/date_ext_test.rb
@@ -454,4 +454,10 @@ class DateExtBehaviorTest < Test::Unit::TestCase
       Date.today.freeze.inspect
     end
   end
+
+  def test_can_freeze_twice
+    assert_nothing_raised do
+      Date.today.freeze.freeze
+    end
+  end
 end