Add a spec for #4155.

jruby · Sep 14, 2016 · 3b556f6 · 3b556f6
1 parent 994a8a2
commit 3b556f6
Showing 1 changed file with 17 additions and 0 deletions.
diff --git a/spec/ruby/core/module/define_method_spec.rb b/spec/ruby/core/module/define_method_spec.rb
@@ -42,6 +42,23 @@ def test_method
       child.another_test_method.should == :foo
     end
   end
+
+  it "sets the new method's visibility to the current frame's visibility" do
+    foo = Class.new do
+      def ziggy
+	'piggy'
+      end
+      private :ziggy
+
+      # make sure frame visibility is public
+      public
+
+      define_method :piggy, instance_method(:ziggy)
+    end
+
+    lambda { foo.new.ziggy }.should raise_error(NoMethodError)
+    foo.new.piggy.should == 'piggy'
+  end
 end
 
 describe "Module#define_method" do