3 files changed, 21 insertions, 1 deletions
diff --git a/cli/tests/testdata/test/captured_subprocess_output.out b/cli/tests/testdata/test/captured_output.out
index 2a40170af..5ac367561 100644
--- a/cli/tests/testdata/test/captured_subprocess_output.out
+++ b/cli/tests/testdata/test/captured_output.out
@@ -1,5 +1,5 @@
 [WILDCARD]
-running 1 test from [WILDCARD]/captured_subprocess_output.ts
+running 1 test from [WILDCARD]/captured_output.ts
 output ...
 ------- output -------
 1
@@ -10,6 +10,8 @@ output ...
 6
 7
 8
+9
+10
 ----- output end -----
 ok ([WILDCARD]s)
 
diff --git a/cli/tests/testdata/test/captured_subprocess_output.ts b/cli/tests/testdata/test/captured_output.ts
index 277ac340e..3710c27b0 100644
--- a/cli/tests/testdata/test/captured_subprocess_output.ts
+++ b/cli/tests/testdata/test/captured_output.ts
@@ -20,4 +20,16 @@ Deno.test("output", async () => {
     stderr: "inherit",
   });
   await c.status;
+  const worker = new Worker(
+    new URL("./captured_output.worker.js", import.meta.url).href,
+    { type: "module" },
+  );
+
+  // ensure worker output is captured
+  const response = new Promise<void>((resolve) =>
+    worker.onmessage = () => resolve()
+  );
+  worker.postMessage({});
+  await response;
+  worker.terminate();
 });
diff --git a/cli/tests/testdata/test/captured_output.worker.js b/cli/tests/testdata/test/captured_output.worker.js
new file mode 100644
index 000000000..b674bce56
--- /dev/null
+++ b/cli/tests/testdata/test/captured_output.worker.js
@@ -0,0 +1,6 @@
+self.onmessage = () => {
+  console.log(9);
+  console.error(10);
+  self.postMessage({});
+  self.close();
+};