1 files changed, 57 insertions, 0 deletions
diff --git a/spec/ruby/language/keyword_arguments_spec.rb b/spec/ruby/language/keyword_arguments_spec.rb
index 66e37915a2..0c72f59d38 100644
--- a/spec/ruby/language/keyword_arguments_spec.rb
+++ b/spec/ruby/language/keyword_arguments_spec.rb
@@ -302,6 +302,63 @@ ruby_version_is "3.0" do
         m(a: 1).should == [[{a: 1}], {}]
         m({a: 1}).should == [[{a: 1}], {}]
       end
+
+      ruby_version_is "3.2" do
+        it "does not work with call(*ruby2_keyword_args) with missing ruby2_keywords in between" do
+          class << self
+            def n(*args) # Note the missing ruby2_keywords here
+              target(*args)
+            end
+
+            ruby2_keywords def m(*args)
+              n(*args)
+            end
+          end
+
+          empty = {}
+          m(**empty).should == [[], {}]
+          m(empty).should == [[{}], {}]
+
+          m(a: 1).should == [[{a: 1}], {}]
+          m({a: 1}).should == [[{a: 1}], {}]
+        end
+      end
+
+      ruby_version_is ""..."3.2" do
+        # https://bugs.ruby-lang.org/issues/18625
+        it "works with call(*ruby2_keyword_args) with missing ruby2_keywords in between due to CRuby bug #18625" do
+          class << self
+            def n(*args) # Note the missing ruby2_keywords here
+              target(*args)
+            end
+
+            ruby2_keywords def m(*args)
+              n(*args)
+            end
+          end
+
+          empty = {}
+          m(**empty).should == [[], {}]
+          Hash.ruby2_keywords_hash?(empty).should == false
+          m(empty).should == [[{}], {}]
+          Hash.ruby2_keywords_hash?(empty).should == false
+
+          m(a: 1).should == [[], {a: 1}]
+          m({a: 1}).should == [[{a: 1}], {}]
+
+          kw = {a: 1}
+
+          m(**kw).should == [[], {a: 1}]
+          m(**kw)[1].should == kw
+          m(**kw)[1].should_not.equal?(kw)
+          Hash.ruby2_keywords_hash?(kw).should == false
+          Hash.ruby2_keywords_hash?(m(**kw)[1]).should == false
+
+          m(kw).should == [[{a: 1}], {}]
+          m(kw)[0][0].should.equal?(kw)
+          Hash.ruby2_keywords_hash?(kw).should == false
+        end
+      end
     end
   end
 end