1 files changed, 15 insertions, 0 deletions
diff --git a/activesupport/test/memoizable_test.rb b/activesupport/test/memoizable_test.rb
index 01631dc5e1..99d9240ea1 100644
--- a/activesupport/test/memoizable_test.rb
+++ b/activesupport/test/memoizable_test.rb
@@ -119,6 +119,21 @@ uses_mocha 'Memoizable' do
       assert_equal 3, @calculator.counter
     end
 
+    def test_unmemoize_all
+      assert_equal 1, @calculator.counter
+
+      assert @calculator.instance_variable_get(:@_memoized_counter).any?
+      @calculator.unmemoize_all
+      assert @calculator.instance_variable_get(:@_memoized_counter).empty?
+
+      assert_equal 2, @calculator.counter
+    end
+
+    def test_memoize_all
+      @calculator.memoize_all
+      assert @calculator.instance_variable_defined?(:@_memoized_counter)
+    end
+
     def test_memoization_cache_is_different_for_each_instance
       assert_equal 1, @calculator.counter
       assert_equal 2, @calculator.counter(:reload)