3 files changed, 48 insertions, 0 deletions
diff --git a/tests/specs/run/fix_worker_dispatchevent/__test__.jsonc b/tests/specs/run/fix_worker_dispatchevent/__test__.jsonc
new file mode 100644
index 000000000..45e49b87f
--- /dev/null
+++ b/tests/specs/run/fix_worker_dispatchevent/__test__.jsonc
@@ -0,0 +1,4 @@
+{
+  "args": "run --quiet --reload fix_worker_dispatchevent.ts",
+  "output": "fix_worker_dispatchevent.ts.out"
+}
diff --git a/tests/specs/run/fix_worker_dispatchevent/fix_worker_dispatchevent.ts b/tests/specs/run/fix_worker_dispatchevent/fix_worker_dispatchevent.ts
new file mode 100644
index 000000000..1b73b52dc
--- /dev/null
+++ b/tests/specs/run/fix_worker_dispatchevent/fix_worker_dispatchevent.ts
@@ -0,0 +1,43 @@
+const code = `
+addEventListener("message", () => {
+  postMessage("pong");
+});
+
+const context = new EventTarget();
+
+Object.defineProperty(globalThis, "dispatchEvent", {
+  value: context.dispatchEvent.bind(context),
+  writable: true,
+  enumerable: true,
+  configurable: true,
+});
+
+postMessage("start");
+`;
+
+const blob = new Blob([code], { type: "application/javascript" });
+
+const url = URL.createObjectURL(blob);
+
+const worker = new Worker(url, { type: "module" });
+
+let terminated = false;
+
+worker.addEventListener("message", (evt) => {
+  if (evt.data === "start") {
+    worker.postMessage("ping");
+  } else if (evt.data === "pong") {
+    worker.terminate();
+    terminated = true;
+    console.log("success");
+  } else {
+    throw new Error("unexpected message from worker");
+  }
+});
+
+setTimeout(() => {
+  if (!terminated) {
+    worker.terminate();
+    throw new Error("did not receive message from worker in time");
+  }
+}, 2000);
diff --git a/tests/specs/run/fix_worker_dispatchevent/fix_worker_dispatchevent.ts.out b/tests/specs/run/fix_worker_dispatchevent/fix_worker_dispatchevent.ts.out
new file mode 100644
index 000000000..2e9ba477f
--- /dev/null
+++ b/tests/specs/run/fix_worker_dispatchevent/fix_worker_dispatchevent.ts.out
@@ -0,0 +1 @@
+success