fixup: clarify the test

Signed-off-by: Daeyeon Jeong [email protected]

Author: daeyeon

.eslintrc.js

@@ -321,6 +321,7 @@ module.exports = {
     ByteLengthQueuingStrategy: 'readable',
     CompressionStream: 'readable',
     CountQueuingStrategy: 'readable',
+    CustomEvent: 'readable',
     Crypto: 'readable',
     CryptoKey: 'readable',
     DecompressionStream: 'readable',

test/parallel/test-global-customevent.js

@@ -1,16 +1,11 @@
 // Flags: --experimental-global-customevent --expose-internals
 'use strict';
 
-const common = require('../common');
+require('../common');
 const { strictEqual, ok } = require('node:assert');
-const { Worker, isMainThread } = require('worker_threads');
-const { CustomEvent } = require('internal/event_target');
+const { CustomEvent: internalCustomEvent } = require('internal/event_target');
 
+// Global
 ok(CustomEvent);
-strictEqual(globalThis.CustomEvent, CustomEvent);
 
-if (isMainThread) {
-  const w = new Worker(__filename);
-  w.on('message', common.mustNotCall());
-  w.on('error', common.mustNotCall());
-}
+strictEqual(CustomEvent, internalCustomEvent);