From d9efb8c02a0036d755c35e8e9c88d58bd45a9e2b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bartek=20Iwa=C5=84czuk?= <biwanczuk@gmail.com>
Date: Fri, 21 Feb 2020 10:35:41 -0500
Subject: fix: add io ops to worker to fix fetch (#4054)

---
 cli/js/workers_test.ts | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

(limited to 'cli/js/workers_test.ts')

diff --git a/cli/js/workers_test.ts b/cli/js/workers_test.ts
index 9cb4f4a07..eccf83f65 100644
--- a/cli/js/workers_test.ts
+++ b/cli/js/workers_test.ts
@@ -1,5 +1,5 @@
 // Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
-import { test, assert, assertEquals } from "./test_util.ts";
+import { test, testPerm, assert, assertEquals } from "./test_util.ts";
 
 export interface ResolvableMethods<T> {
   resolve: (value?: T | PromiseLike<T>) => void;
@@ -82,3 +82,24 @@ test(async function workerThrowsWhenExecuting(): Promise<void> {
 
   await promise;
 });
+
+testPerm({ net: true }, async function workerCanUseFetch(): Promise<void> {
+  const promise = createResolvable();
+
+  const fetchingWorker = new Worker("../tests/subdir/fetching_worker.js", {
+    type: "module"
+  });
+
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  fetchingWorker.onerror = (e: any): void => {
+    e.preventDefault();
+    promise.reject(e.message);
+  };
+
+  fetchingWorker.onmessage = (e): void => {
+    assert(e.data === "Done!");
+    promise.resolve();
+  };
+
+  await promise;
+});
-- 
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