2 files changed, 22 insertions, 5 deletions
diff --git a/spec/ruby/core/method/parameters_spec.rb b/spec/ruby/core/method/parameters_spec.rb
index 3fdaf9ce6f..67b42afafa 100644
--- a/spec/ruby/core/method/parameters_spec.rb
+++ b/spec/ruby/core/method/parameters_spec.rb
@@ -222,9 +222,18 @@ describe "Method#parameters" do
     m.method(:handled_via_method_missing).parameters.should == [[:rest]]
   end
 
-  it "adds nameless rest arg for \"star\" argument" do
-    m = MethodSpecs::Methods.new
-    m.method(:one_unnamed_splat).parameters.should == [[:rest]]
+  ruby_version_is '3.1' do
+    it "adds * rest arg for \"star\" argument" do
+      m = MethodSpecs::Methods.new
+      m.method(:one_unnamed_splat).parameters.should == [[:rest, :*]]
+    end
+  end
+
+  ruby_version_is ''...'3.1' do
+    it "adds nameless rest arg for \"star\" argument" do
+      m = MethodSpecs::Methods.new
+      m.method(:one_unnamed_splat).parameters.should == [[:rest]]
+    end
   end
 
   it "returns the args and block for a splat and block argument" do
diff --git a/spec/ruby/core/proc/parameters_spec.rb b/spec/ruby/core/proc/parameters_spec.rb
index 5fb5cf418d..60620722f8 100644
--- a/spec/ruby/core/proc/parameters_spec.rb
+++ b/spec/ruby/core/proc/parameters_spec.rb
@@ -80,8 +80,16 @@ describe "Proc#parameters" do
     -> x {}.parameters.should == [[:req, :x]]
   end
 
-  it "adds nameless rest arg for \"star\" argument" do
-    -> x, * {}.parameters.should == [[:req, :x], [:rest]]
+  ruby_version_is '3.1' do
+    it "adds * rest arg for \"star\" argument" do
+      -> x, * {}.parameters.should == [[:req, :x], [:rest, :*]]
+    end
+  end
+
+  ruby_version_is ''...'3.1' do
+    it "adds nameless rest arg for \"star\" argument" do
+      -> x, * {}.parameters.should == [[:req, :x], [:rest]]
+    end
   end
 
   it "does not add locals as block options with a block and splat" do