1 files changed, 75 insertions, 23 deletions
diff --git a/spec/ruby/language/delegation_spec.rb b/spec/ruby/language/delegation_spec.rb
index ac7b511f65..d780506421 100644
--- a/spec/ruby/language/delegation_spec.rb
+++ b/spec/ruby/language/delegation_spec.rb
@@ -1,41 +1,93 @@
 require_relative '../spec_helper'
 require_relative 'fixtures/delegation'
 
-ruby_version_is "2.7" do
-  describe "delegation with def(...)" do
-    it "delegates rest and kwargs" do
-      a = Class.new(DelegationSpecs::Target)
+describe "delegation with def(...)" do
+  it "delegates rest and kwargs" do
+    a = Class.new(DelegationSpecs::Target)
+    a.class_eval(<<-RUBY)
+      def delegate(...)
+        target(...)
+      end
+    RUBY
+
+    a.new.delegate(1, b: 2).should == [[1], {b: 2}]
+  end
+
+  it "delegates block" do
+    a = Class.new(DelegationSpecs::Target)
+    a.class_eval(<<-RUBY)
+      def delegate_block(...)
+        target_block(...)
+      end
+    RUBY
+
+    a.new.delegate_block(1, b: 2) { |x| x }.should == [{b: 2}, [1]]
+  end
+
+  it "parses as open endless Range when brackets are omitted" do
+    a = Class.new(DelegationSpecs::Target)
+    suppress_warning do
       a.class_eval(<<-RUBY)
         def delegate(...)
-          target(...)
+          target ...
         end
       RUBY
-
-      a.new.delegate(1, b: 2).should == [[1], {b: 2}]
     end
 
-    it "delegates block" do
+    a.new.delegate(1, b: 2).should == Range.new([[], {}], nil, true)
+  end
+end
+
+describe "delegation with def(x, ...)" do
+  it "delegates rest and kwargs" do
+    a = Class.new(DelegationSpecs::Target)
+    a.class_eval(<<-RUBY)
+      def delegate(x, ...)
+        target(...)
+      end
+    RUBY
+
+    a.new.delegate(0, 1, b: 2).should == [[1], {b: 2}]
+  end
+
+  it "delegates block" do
+    a = Class.new(DelegationSpecs::Target)
+    a.class_eval(<<-RUBY)
+      def delegate_block(x, ...)
+        target_block(...)
+      end
+    RUBY
+
+    a.new.delegate_block(0, 1, b: 2) { |x| x }.should == [{b: 2}, [1]]
+  end
+end
+
+ruby_version_is "3.2" do
+  describe "delegation with def(*)" do
+    it "delegates rest" do
       a = Class.new(DelegationSpecs::Target)
       a.class_eval(<<-RUBY)
-        def delegate_block(...)
-          target_block(...)
-        end
-      RUBY
+      def delegate(*)
+        target(*)
+      end
+    RUBY
 
-      a.new.delegate_block(1, b: 2) { |x| x }.should == [{b: 2}, [1]]
+      a.new.delegate(0, 1).should == [[0, 1], {}]
     end
+  end
+end
 
-    it "parses as open endless Range when brackets are omitted" do
+ruby_version_is "3.2" do
+  describe "delegation with def(**)" do
+    it "delegates kwargs" do
       a = Class.new(DelegationSpecs::Target)
-      suppress_warning do
-        a.class_eval(<<-RUBY)
-          def delegate(...)
-            target ...
-          end
-         RUBY
-       end
-
-       a.new.delegate(1, b: 2).should == Range.new([[], {}], nil, true)
+      a.class_eval(<<-RUBY)
+      def delegate(**)
+        target(**)
+      end
+    RUBY
+
+      a.new.delegate(a: 1) { |x| x }.should == [[], {a: 1}]
     end
   end
 end