test(ext/node): add worker_threads test for SharedArrayBuffer (#22850)

Follow up to https://github.com/denoland/deno/pull/22815

1 files changed, 17 insertions, 0 deletions

diff --git a/tests/unit_node/testdata/worker_threads2.mjs b/tests/unit_node/testdata/worker_threads2.mjs
new file mode 100644
index 000000000..52d906bdf
--- /dev/null
+++ b/tests/unit_node/testdata/worker_threads2.mjs
@@ -0,0 +1,17 @@
+// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
+import { parentPort, workerData } from "node:worker_threads";
+import { once } from "node:events";
+
+async function message(expectedMessage) {
+  const [message] = await once(parentPort, "message");
+  if (message !== expectedMessage) {
+    console.log(`Expected the message "${expectedMessage}", but got`, message);
+    // fail test
+    parentPort.close();
+  }
+}
+
+const uint = new Uint8Array(workerData.sharedArrayBuffer);
+uint[0]++;
+await message("Hello");
+parentPort.postMessage("Hello");