3 files changed, 23 insertions, 5 deletions
diff --git a/tests/specs/future/runtime_api/__test__.jsonc b/tests/specs/future/runtime_api/__test__.jsonc
index eb833195d..7aceff5bf 100644
--- a/tests/specs/future/runtime_api/__test__.jsonc
+++ b/tests/specs/future/runtime_api/__test__.jsonc
@@ -1,7 +1,18 @@
 {
-  "args": "run -A main.js",
-  "output": "main.out",
-  "envs": {
-    "DENO_FUTURE": "1"
-  }
+  "steps": [
+    {
+      "args": "run -A --unstable-fs main.js",
+      "output": "main.out",
+      "envs": {
+        "DENO_FUTURE": "1"
+      }
+    },
+    {
+      "args": "run -A --unstable-fs worker.js",
+      "output": "main.out",
+      "envs": {
+        "DENO_FUTURE": "1"
+      }
+    }
+  ]
 }
diff --git a/tests/specs/future/runtime_api/main.js b/tests/specs/future/runtime_api/main.js
index 5275ad878..ed60a7b7c 100644
--- a/tests/specs/future/runtime_api/main.js
+++ b/tests/specs/future/runtime_api/main.js
@@ -30,3 +30,5 @@ console.log("Deno.writeAll is", Deno.writeAll);
 console.log("Deno.writeAllSync is", Deno.writeAllSync);
 console.log("Deno.write is", Deno.write);
 console.log("Deno.writeSync is", Deno.writeSync);
+
+self.close();
diff --git a/tests/specs/future/runtime_api/worker.js b/tests/specs/future/runtime_api/worker.js
new file mode 100644
index 000000000..64b8e07b8
--- /dev/null
+++ b/tests/specs/future/runtime_api/worker.js
@@ -0,0 +1,5 @@
+import { delay } from "../../../util/std/async/delay.ts";
+
+const worker = new Worker(import.meta.resolve("./main.js"), { type: "module" });
+await delay(1_000);
+worker.terminate();