1 files changed, 14 insertions, 1 deletions
diff --git a/spec/ruby/core/proc/clone_spec.rb b/spec/ruby/core/proc/clone_spec.rb
index 7eca9c561e..aee4873e09 100644
--- a/spec/ruby/core/proc/clone_spec.rb
+++ b/spec/ruby/core/proc/clone_spec.rb
@@ -1,10 +1,11 @@
 require_relative '../../spec_helper'
+require_relative 'fixtures/common'
 require_relative 'shared/dup'
 
 describe "Proc#clone" do
   it_behaves_like :proc_dup, :clone
 
-  ruby_bug "cloning a frozen proc is broken on Ruby 3.3", "3.3"..."3.4" do
+  ruby_bug "cloning a frozen proc is broken on Ruby 3.3", ""..."3.4" do
     it "preserves frozen status" do
       proc = Proc.new { }
       proc.freeze
@@ -12,4 +13,16 @@ describe "Proc#clone" do
       proc.clone.frozen?.should == true
     end
   end
+
+  it "calls #initialize_clone on subclass" do
+    obj = ProcSpecs::MyProc2.new(:a, 2) { }
+    dup = obj.clone
+
+    dup.should_not.equal?(obj)
+    dup.class.should == ProcSpecs::MyProc2
+
+    dup.first.should == :a
+    dup.second.should == 2
+    dup.initializer.should == :clone
+  end
 end