2 files changed, 24 insertions, 0 deletions
diff --git a/cli/tests/testdata/workers/error_event.ts b/cli/tests/testdata/workers/error_event.ts
new file mode 100644
index 000000000..f3046178a
--- /dev/null
+++ b/cli/tests/testdata/workers/error_event.ts
@@ -0,0 +1,11 @@
+const worker = new Worker(new URL("error.ts", import.meta.url).href, {
+  type: "module",
+});
+worker.addEventListener("error", (e) => {
+  console.log({
+    "message": e.message,
+    "filename": e.filename?.slice?.(-100),
+    "lineno": e.lineno,
+    "colno": e.colno,
+  });
+});
diff --git a/cli/tests/testdata/workers/error_event.ts.out b/cli/tests/testdata/workers/error_event.ts.out
new file mode 100644
index 000000000..9c075e23e
--- /dev/null
+++ b/cli/tests/testdata/workers/error_event.ts.out
@@ -0,0 +1,13 @@
+error: Uncaught (in worker "") Error: foo
+  throw new Error("foo");
+        ^
+    at foo ([WILDCARD]/error.ts:2:9)
+    at [WILDCARD]/error.ts:5:1
+{
+  message: "Uncaught Error: foo",
+  filename: "[WILDCARD]/error.ts",
+  lineno: 2,
+  colno: 9
+}
+error: Uncaught (in promise) Error: Unhandled error in child worker.
+    at [WILDCARD]