Deprecate `Module.local_constants`

After Ruby 1.9, we can easily get the constants that have been
defined locally by `Module.constants(false)`.

1 files changed, 7 insertions, 1 deletions

diff --git a/activesupport/test/core_ext/module_test.rb b/activesupport/test/core_ext/module_test.rb
index 0ed66f8c37..cbe025624c 100644
--- a/activesupport/test/core_ext/module_test.rb
+++ b/activesupport/test/core_ext/module_test.rb
@@ -328,7 +328,13 @@ class ModuleTest < ActiveSupport::TestCase
   end
 
   def test_local_constants
-    assert_equal %w(Constant1 Constant3), Ab.local_constants.sort.map(&:to_s)
+    ActiveSupport::Deprecation.silence do
+      assert_equal %w(Constant1 Constant3), Ab.local_constants.sort.map(&:to_s)
+    end
+  end
+
+  def test_test_local_constants_is_deprecated
+    assert_deprecated { Ab.local_constants.sort.map(&:to_s) }
   end
 end