1 files changed, 16 insertions, 5 deletions
diff --git a/spec/ruby/core/string/gsub_spec.rb b/spec/ruby/core/string/gsub_spec.rb
index 23e0ad2260..54a2be0fed 100644
--- a/spec/ruby/core/string/gsub_spec.rb
+++ b/spec/ruby/core/string/gsub_spec.rb
@@ -236,11 +236,22 @@ describe "String#gsub with pattern and replacement" do
     -> { "hello".gsub(/[aeiou]/, nil)           }.should raise_error(TypeError)
   end
 
-  it "returns subclass instances when called on a subclass" do
-    StringSpecs::MyString.new("").gsub(//, "").should be_an_instance_of(StringSpecs::MyString)
-    StringSpecs::MyString.new("").gsub(/foo/, "").should be_an_instance_of(StringSpecs::MyString)
-    StringSpecs::MyString.new("foo").gsub(/foo/, "").should be_an_instance_of(StringSpecs::MyString)
-    StringSpecs::MyString.new("foo").gsub("foo", "").should be_an_instance_of(StringSpecs::MyString)
+  ruby_version_is ''...'3.0' do
+    it "returns subclass instances when called on a subclass" do
+      StringSpecs::MyString.new("").gsub(//, "").should be_an_instance_of(StringSpecs::MyString)
+      StringSpecs::MyString.new("").gsub(/foo/, "").should be_an_instance_of(StringSpecs::MyString)
+      StringSpecs::MyString.new("foo").gsub(/foo/, "").should be_an_instance_of(StringSpecs::MyString)
+      StringSpecs::MyString.new("foo").gsub("foo", "").should be_an_instance_of(StringSpecs::MyString)
+    end
+  end
+
+  ruby_version_is '3.0' do
+    it "returns String instances when called on a subclass" do
+      StringSpecs::MyString.new("").gsub(//, "").should be_an_instance_of(String)
+      StringSpecs::MyString.new("").gsub(/foo/, "").should be_an_instance_of(String)
+      StringSpecs::MyString.new("foo").gsub(/foo/, "").should be_an_instance_of(String)
+      StringSpecs::MyString.new("foo").gsub("foo", "").should be_an_instance_of(String)
+    end
   end
 
   # Note: $~ cannot be tested because mspec messes with it