fix(cli/worker): Print error stacks from the origin Worker (#7987)

Fixes #4728

6 files changed, 37 insertions, 0 deletions

diff --git a/cli/tests/073_worker_error.ts b/cli/tests/073_worker_error.ts
new file mode 100644
index 000000000..736c4fde6
--- /dev/null
+++ b/cli/tests/073_worker_error.ts
@@ -0,0 +1,5 @@
+const worker = new Worker(
+  new URL("subdir/worker_error.ts", import.meta.url).href,
+  { type: "module", name: "bar" },
+);
+setTimeout(() => worker.terminate(), 30000);
diff --git a/cli/tests/073_worker_error.ts.out b/cli/tests/073_worker_error.ts.out
new file mode 100644
index 000000000..412ab3376
--- /dev/null
+++ b/cli/tests/073_worker_error.ts.out
@@ -0,0 +1,5 @@
+[WILDCARD]error: Uncaught (in worker "bar") Error: foo[WILDCARD]
+    at foo ([WILDCARD])
+    at [WILDCARD]
+error: Uncaught Error: Unhandled error event reached main worker.
+    at Worker.#poll ([WILDCARD])
diff --git a/cli/tests/074_worker_nested_error.ts b/cli/tests/074_worker_nested_error.ts
new file mode 100644
index 000000000..975d897ca
--- /dev/null
+++ b/cli/tests/074_worker_nested_error.ts
@@ -0,0 +1,5 @@
+const worker = new Worker(
+  new URL("073_worker_error.ts", import.meta.url).href,
+  { type: "module", name: "baz" },
+);
+setTimeout(() => worker.terminate(), 30000);
diff --git a/cli/tests/074_worker_nested_error.ts.out b/cli/tests/074_worker_nested_error.ts.out
new file mode 100644
index 000000000..412ab3376
--- /dev/null
+++ b/cli/tests/074_worker_nested_error.ts.out
@@ -0,0 +1,5 @@
+[WILDCARD]error: Uncaught (in worker "bar") Error: foo[WILDCARD]
+    at foo ([WILDCARD])
+    at [WILDCARD]
+error: Uncaught Error: Unhandled error event reached main worker.
+    at Worker.#poll ([WILDCARD])
diff --git a/cli/tests/integration_tests.rs b/cli/tests/integration_tests.rs
index d7786e966..0c11ea75e 100644
--- a/cli/tests/integration_tests.rs
+++ b/cli/tests/integration_tests.rs
@@ -2136,6 +2136,18 @@ fn _066_prompt() {
   util::test_pty(args, output, input);
 }
 
+itest!(_073_worker_error {
+  args: "run -A 073_worker_error.ts",
+  output: "073_worker_error.ts.out",
+  exit_code: 1,
+});
+
+itest!(_074_worker_nested_error {
+  args: "run -A 074_worker_nested_error.ts",
+  output: "074_worker_nested_error.ts.out",
+  exit_code: 1,
+});
+
 itest!(js_import_detect {
   args: "run --quiet --reload js_import_detect.ts",
   output: "js_import_detect.ts.out",
diff --git a/cli/tests/subdir/worker_error.ts b/cli/tests/subdir/worker_error.ts
new file mode 100644
index 000000000..495971090
--- /dev/null
+++ b/cli/tests/subdir/worker_error.ts
@@ -0,0 +1,5 @@
+function foo() {
+  throw new Error("foo");
+}
+
+foo();