fix(ext/node): make worker ids sequential (#22884)

3 files changed, 44 insertions, 0 deletions

diff --git a/tests/integration/worker_tests.rs b/tests/integration/worker_tests.rs
index 492a06e36..8fdef8b2b 100644
--- a/tests/integration/worker_tests.rs
+++ b/tests/integration/worker_tests.rs
@@ -112,6 +112,12 @@ itest!(worker_doest_stall_event_loop {
   exit_code: 0,
 });
 
+itest!(worker_ids_are_sequential {
+  args: "run --quiet -A workers/worker_ids_are_sequential.ts",
+  output: "workers/worker_ids_are_sequential.ts.out",
+  exit_code: 0,
+});
+
 // Test for https://github.com/denoland/deno/issues/22629
 itest!(node_worker_auto_exits {
   args: "run --quiet --allow-read workers/node_worker_auto_exits.mjs",
diff --git a/tests/testdata/workers/worker_ids_are_sequential.ts b/tests/testdata/workers/worker_ids_are_sequential.ts
new file mode 100644
index 000000000..eb90f0d47
--- /dev/null
+++ b/tests/testdata/workers/worker_ids_are_sequential.ts
@@ -0,0 +1,34 @@
+import {
+  isMainThread,
+  parentPort,
+  threadId,
+  Worker,
+} from "node:worker_threads";
+
+console.log("threadId", threadId);
+
+if (isMainThread) {
+  const worker = new Worker(new URL(import.meta.url));
+  worker.on("message", (msg) => console.log("from worker:", msg));
+  worker.on("error", () => {
+    throw new Error("error");
+  });
+  worker.on("exit", (code) => {
+    if (code !== 0) {
+      reject(new Error(`Worker stopped with exit code ${code}`));
+    }
+  });
+} else if (threadId == 1) {
+  const worker = new Worker(new URL(import.meta.url));
+  worker.on("message", (msg) => console.log("from worker:", msg));
+  worker.on("error", () => {
+    throw new Error("error");
+  });
+  worker.on("exit", (code) => {
+    if (code !== 0) {
+      reject(new Error(`Worker stopped with exit code ${code}`));
+    }
+  });
+} else {
+  parentPort.postMessage("hello!");
+}
diff --git a/tests/testdata/workers/worker_ids_are_sequential.ts.out b/tests/testdata/workers/worker_ids_are_sequential.ts.out
new file mode 100644
index 000000000..1f0552864
--- /dev/null
+++ b/tests/testdata/workers/worker_ids_are_sequential.ts.out
@@ -0,0 +1,4 @@
+threadId 0
+threadId 1
+threadId 2
+from worker: hello!