class.c: prohibit refinement module

* class.c (ensure_includable): cannot include refinement
  module, or the type and the class do not match.
  [ruby-core:79632] [Bug #13236]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58083 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 14 insertions, 0 deletions

diff --git a/test/ruby/test_refinement.rb b/test/ruby/test_refinement.rb
index f6e08729d7..82bdb49659 100644
--- a/test/ruby/test_refinement.rb
+++ b/test/ruby/test_refinement.rb
@@ -1886,6 +1886,20 @@ class TestRefinement < Test::Unit::TestCase
     assert_equal("Parent -> Child", SuperToModule::Child.test, bug)
   end
 
+  def test_include_refinement
+    bug = '[ruby-core:79632] [Bug #13236] cannot include refinement module'
+    r = nil
+    m = Module.new do
+      r = refine(String) {def test;:ok end}
+    end
+    assert_raise_with_message(ArgumentError, /refinement/, bug) do
+      m.module_eval {include r}
+    end
+    assert_raise_with_message(ArgumentError, /refinement/, bug) do
+      m.module_eval {prepend r}
+    end
+  end
+
   private
 
   def eval_using(mod, s)