2 files changed, 8 insertions, 0 deletions
diff --git a/activesupport/test/inflector_test.rb b/activesupport/test/inflector_test.rb
index 60714a152d..f55116dfab 100644
--- a/activesupport/test/inflector_test.rb
+++ b/activesupport/test/inflector_test.rb
@@ -63,6 +63,13 @@ class InflectorTest < Test::Unit::TestCase
       assert_equal(singular.capitalize, ActiveSupport::Inflector.singularize(plural.capitalize))
     end
   end
+  
+  SingularToPlural.each do |singular, plural|
+    define_method "test_pluralize_#{plural}" do
+      assert_equal(plural, ActiveSupport::Inflector.pluralize(plural))
+      assert_equal(plural.capitalize, ActiveSupport::Inflector.pluralize(plural.capitalize))
+    end
+  end
 
   def test_overwrite_previous_inflectors
     assert_equal("series", ActiveSupport::Inflector.singularize("series"))
diff --git a/activesupport/test/inflector_test_cases.rb b/activesupport/test/inflector_test_cases.rb
index 59515dad32..2b144e5931 100644
--- a/activesupport/test/inflector_test_cases.rb
+++ b/activesupport/test/inflector_test_cases.rb
@@ -44,6 +44,7 @@ module InflectorTestCases
 
     "datum"       => "data",
     "medium"      => "media",
+    "stadium"     => "stadia",
     "analysis"    => "analyses",
 
     "node_child"  => "node_children",