fix(ext/node): resource leak in createHmac (#18229)

This commit fixes https://github.com/denoland/deno/issues/18140.
Verified that test fails on `main`.

1 files changed, 24 insertions, 0 deletions

diff --git a/cli/tests/unit_node/crypto_hash.ts b/cli/tests/unit_node/crypto_hash.ts
new file mode 100644
index 000000000..fae66e024
--- /dev/null
+++ b/cli/tests/unit_node/crypto_hash.ts
@@ -0,0 +1,24 @@
+// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
+import { createHash, createHmac } from "node:crypto";
+import { assertEquals } from "../../../test_util/std/testing/asserts.ts";
+
+// https://github.com/denoland/deno/issues/18140
+Deno.test({
+  name: "createHmac digest",
+  fn() {
+    assertEquals(
+      createHmac("sha256", "secret").update("hello").digest("hex"),
+      "88aab3ede8d3adf94d26ab90d3bafd4a2083070c3bcce9c014ee04a443847c0b",
+    );
+  },
+});
+
+Deno.test({
+  name: "createHash digest",
+  fn() {
+    assertEquals(
+      createHash("sha256").update("hello").digest("hex"),
+      "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824",
+    );
+  },
+});