1 files changed, 35 insertions, 4 deletions
diff --git a/test/ruby/test_refinement.rb b/test/ruby/test_refinement.rb
index 3ca00ed912..380119fb9b 100644
--- a/test/ruby/test_refinement.rb
+++ b/test/ruby/test_refinement.rb
@@ -379,10 +379,15 @@ class TestRefinement < Test::Unit::TestCase
   def test_refine_module_with_overriding
     m1 = Module.new {
       def foo
-        [:m1]
+        super << :m1
       end
     }
-    c = Class.new {
+    c0 = Class.new {
+      def foo
+        [:c0]
+      end
+    }
+    c = Class.new(c0) {
       include m1
     }
     m2 = Module.new {
@@ -393,7 +398,7 @@ class TestRefinement < Test::Unit::TestCase
       end
     }
     obj = c.new
-    assert_equal([:m1, :m2], m2.module_eval { obj.foo })
+    assert_equal([:c0, :m1, :m2], m2.module_eval { obj.foo })
   end
 
   def test_refine_module_with_double_overriding
@@ -726,7 +731,6 @@ class TestRefinement < Test::Unit::TestCase
   end
 
   def test_inline_method_cache
-    skip "can't implement efficiently with the current implementation of refinements"
     c = InlineMethodCache::C.new
     f = Proc.new { c.foo }
     assert_equal("original", f.call)
@@ -822,4 +826,31 @@ class TestRefinement < Test::Unit::TestCase
       end
     end
   end
+
+  module RedifineRefinedMethod
+    class C
+      def foo
+        "original"
+      end
+    end
+
+    module M
+      refine C do
+        def foo
+          "refined"
+        end
+      end
+    end
+
+    class C
+      def foo
+        "redefined"
+      end
+    end
+  end
+
+  def test_redefine_refined_method
+    c = RedifineRefinedMethod::C.new
+    assert_equal("refined", RedifineRefinedMethod::M.module_eval { c.foo })
+  end
 end