1 files changed, 57 insertions, 0 deletions
diff --git a/spec/ruby/core/module/refine_spec.rb b/spec/ruby/core/module/refine_spec.rb
index 97ea0a706d..662d49205d 100644
--- a/spec/ruby/core/module/refine_spec.rb
+++ b/spec/ruby/core/module/refine_spec.rb
@@ -425,6 +425,24 @@ describe "Module#refine" do
       end
     end
 
+    ruby_version_is "" ... "2.6" do
+      it "is not honored by Kernel#public_send" do
+        refinement = Module.new do
+          refine ModuleSpecs::ClassWithFoo do
+            def foo; "foo from refinement"; end
+          end
+        end
+
+        result = nil
+        Module.new do
+          using refinement
+          result = ModuleSpecs::ClassWithFoo.new.public_send :foo
+        end
+
+        result.should == "foo"
+      end
+    end
+
     ruby_version_is "2.6" do
       it "is honored by Kernel#public_send" do
         refinement = Module.new do
@@ -561,6 +579,45 @@ describe "Module#refine" do
         result.should == true
       end
     end
+
+    ruby_version_is ""..."2.6" do
+      it "is not honored by &" do
+        refinement = Module.new do
+          refine String do
+            def to_proc(*args)
+              -> (*) { 'foo' }
+            end
+          end
+        end
+
+        -> do
+          Module.new do
+            using refinement
+            ["hola"].map(&"upcase")
+          end
+        end.should raise_error(TypeError, /wrong argument type String \(expected Proc\)/)
+      end
+    end
+
+    ruby_version_is "2.6" do
+      it "is honored by &" do
+        refinement = Module.new do
+          refine String do
+            def to_proc(*args)
+              -> (*) { 'foo' }
+            end
+          end
+        end
+
+        result = nil
+        Module.new do
+          using refinement
+          result = ["hola"].map(&"upcase")
+        end
+
+        result.should == ['foo']
+      end
+    end
   end
 
   context "when super is called in a refinement" do