1 files changed, 20 insertions, 1 deletions
diff --git a/spec/ruby/core/hash/slice_spec.rb b/spec/ruby/core/hash/slice_spec.rb
index d414b1919f..f7717c9404 100644
--- a/spec/ruby/core/hash/slice_spec.rb
+++ b/spec/ruby/core/hash/slice_spec.rb
@@ -6,10 +6,11 @@ ruby_version_is "2.5" do
       @hash = { a: 1, b: 2, c: 3 }
     end
 
-    it "returns new hash" do
+    it "returns a new empty hash without arguments" do
       ret = @hash.slice
       ret.should_not equal(@hash)
       ret.should be_an_instance_of(Hash)
+      ret.should == {}
     end
 
     it "returns the requested subset" do
@@ -27,10 +28,28 @@ ruby_version_is "2.5" do
     it "returns a Hash instance, even on subclasses" do
       klass = Class.new(Hash)
       h = klass.new
+      h[:bar] = 12
       h[:foo] = 42
       r = h.slice(:foo)
       r.should == {foo: 42}
       r.class.should == Hash
     end
+
+    it "uses the regular Hash#[] method, even on subclasses that override it" do
+      ScratchPad.record []
+      klass = Class.new(Hash) do
+        def [](value)
+          ScratchPad << :used_subclassed_operator
+          super
+        end
+      end
+
+      h = klass.new
+      h[:bar] = 12
+      h[:foo] = 42
+      h.slice(:foo)
+
+      ScratchPad.recorded.should == []
+    end
   end
 end