1 files changed, 12 insertions, 0 deletions
diff --git a/spec/ruby/shared/string/start_with.rb b/spec/ruby/shared/string/start_with.rb
index d8d6e13f6a..4b947a3bbf 100644
--- a/spec/ruby/shared/string/start_with.rb
+++ b/spec/ruby/shared/string/start_with.rb
@@ -69,4 +69,16 @@ describe :start_with, shared: true do
     Regexp.last_match.should be_nil
     $1.should be_nil
   end
+
+  ruby_version_is ""..."3.3" do
+    it "does not check that we are not matching part of a character" do
+      "\xC3\xA9".send(@method).should.start_with?("\xC3")
+    end
+  end
+
+  ruby_version_is "3.3" do # #19784
+    it "checks that we are not matching part of a character" do
+      "\xC3\xA9".send(@method).should_not.start_with?("\xC3")
+    end
+  end
 end