1 files changed, 16 insertions, 0 deletions
diff --git a/tests/unit_node/punycode_test.ts b/tests/unit_node/punycode_test.ts
new file mode 100644
index 000000000..f5f8c4f97
--- /dev/null
+++ b/tests/unit_node/punycode_test.ts
@@ -0,0 +1,16 @@
+// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
+
+import * as punycode from "node:punycode";
+import { assertEquals } from "@std/assert/mod.ts";
+
+Deno.test("regression #19214", () => {
+  const input = "个��.hk";
+
+  assertEquals(punycode.toASCII(input), "xn--ciq6844ba.hk");
+
+  assertEquals(punycode.toUnicode("xn--ciq6844ba.hk"), input);
+});
+
+Deno.test("Decode empty input", () => {
+  assertEquals(punycode.decode(""), "");
+});